Unreal Engine 4.25 Preview


**Preview 1 of the upcoming 4.25 release is available now on the Launcher and GitHub. **We are making this Preview available so that our developer community can try our new features and help us catch issues before the final release. As fixes are implemented, we will release updated previews throughout the development cycle.

Please be aware that preview releases are not fully quality tested, that they are still under heavy active development, and that they should be considered as unstable until the final release. Developers should not convert their projects for active development on preview releases. Please test on copies of your project instead.

Links to known and fixed issues for this release are provided below. If you discover any additional issues with this preview release, please report them using the guidelines in the link: How to Report a Bug.

Known & Fixed Issues

4.25 Preview Summary

This list provides a brief summary of updates in this Preview which may benefit from additional testing. Not all updates may be listed. Full release notes will be made available with the final 4.25 release.

AI Updates:

  • **Navigation Improvements (Beta). **The following improvements have been implemented for navmeshes:

    • Options for handling offline navmesh builds.

    • New CostLimit property in FindPath navigation queries.

    • Options for filling collision under navmeshes. When set on a static mesh component, the navmesh will not be generated under the surface of the geometry.

Animation Updates:

  • **Animation Insights (Experimental). **The editor now includes Animation Insights to visualize gameplay state, live animation behavior, and information from recorded traces.

  • Animation Timeline Refactor (Beta). Asset editors for animation assets now use a Sequencer-like timeline that provides a more consistent look and feel when dealing with animation data. Editing of Animation Montage sections is now done in a dedicated tab with breadcrumb trails and dropdown menus. Additionally, Animation Curves now use a fully-featured Sequencer-like Curve Editor.

  • **Animation Compression Improvements (Beta). **Plugins can now specify new Animation Compression schemes and compression data structures. Animation Sequences now reference Compression Settings Assets, which contain one or more codecs to apply to the Animation Sequence, replacing the earlier concept of hardcoded “Automatic Compression.” Animation compression is now performed asynchronously as a non-blocking operation inside Unreal Editor.

  • **Control Rig Improvements (Experimental). **Control Rigs are now more memory efficient and performant than the previous iteration (up to 20% faster and up to 75% memory savings). We have added Visual Debugging, Direct Manipulation for values to improve the overall user experience. The hierarchy now supports trees of bones, spaces and controls where controls represent the 3d user interface to the rig. We also improved flexibility in user interface design and added full coverage for scripting in Python to automate workflow tasks as well as extended support for Control Rig in Sequence.

**Audio Updates: **

  • **Convolution Reverb (Beta). **Convolution Reverb provides a way to digitally simulate reverberation based on real-world samples from physical spaces, and produces a more realistic sound environment.

  • **Native Soundfield Ambisonics (Beta). **This feature brings a new dimension to audio in a 3D, interactive environment by providing sound relative to the position of both the listener and the sound origination point.

  • **Soundfield and Endpoint Submixes (Beta). **These submixes reduce development time when implementing any spatial audio format in UE, and provide better control on spatial localization for immersive gameplay.

  • **Submix Assetization (Beta). **Submix Assetization makes it possible to define default submixes in UE audio settings, providing faster iteration time.

  • **Master/Sidechain Compression (Beta). **This is an improved method for ducking ambient sounds when the listener’s focus needs to be heightened. For example, when an enemy approaches, the sound of their footsteps isn’t masked by a louder but more distant grenade explosion.

Core Updates:

  • **Unreal Insights (Beta). **This release features UX and architecture improvements for the Insights application performance profiling tool.

  • FProperty Refactor. UProperty are refactored to be FProperty, which means that UProperty is no longer a UObject after this release. Note that this is an API update, and the refactor should go unnoticed by end-users who don’t work with the source code.

Datasmith Updates:

  • **LiDAR Point Clouds: **Unreal Engine now offers native support for the most popular point cloud formats. We’ve taken the LiDAR Point Clouds Plugin from the Marketplace, made major improvements to its performance and scalability, added new settings and features including the option to delete hidden points, and made the Plugin available directly in the Plugins window of the Unreal Editor.

  • **Visual Dataprep (Beta). Updates include: **

    • The Visual Dataprep graph editor now has a distinct look and feel that better reflects its execution and data flows.

    • We’ve exposed the main Dataprep actions to Blueprint and Python, so your editor scripts can drive imports through the Visual Dataprep system.

    • We’ve added some new Select By nodes to filter objects by Layer, by vertex count, or by triangle count.

    • Several new Operator nodes offer additional options for setting up your scene and your Assets, such as the ability to add random offsets to the 3D positions of your Actors, flip the facing directions of triangles in your Static Meshes, replace Asset references, and more.

  • **Datasmith Interop. **Several updates have been made, including:

    • **Rhino: **You can now choose on import whether to have Datasmith tessellate all parametric surfaces for you, or whether you want to reuse triangular meshes previously created by Rhino and stored in your Rhino scene.

    • **In addition, Datasmith now imports Rhino points as empty Actors, and it imports technical metadata about Rhino objects as Tags on the Actors. **
    • **Revit: **The Datasmith Export Plugin for Revit now includes a plugin for Dynamo: DatasmithDynamoNode.dll. It contains a new DatasmithDynamoNode.Export3DViewsToDatasmith node that you can use to batch export multiple 3D views from Revit to .udatasmith files.

    • We’ve also made many fixes and improvements in handling pivot points, importing families and hierarchies, converting PBR materials, and naming Static Mesh Components and Texture Assets.
    • **PLMXML: **The Datasmith CAD Importer can now import PLMXML files. The import process automatically imports geometry from referenced files, preserves scene hierarchy and placement, converts PLMXML User Data to Datasmith Metadata, and creates a Variant for each PLMXML Product View that you can use with the Variant Manager.

  • Variant Manager. We’ve made several ease-of-use improvements to the Variant Manager UI:

    • You can use external image files as thumbnails for Variants.

    • Automatically swap a bound Actor in a Variant to a different Actor.

    • Reorder captured properties.

    • Set the values of captured color properties more easily using a color picker.

    • Capture settings from Cine Camera Actors.

    • When you set up a Variant to call a Blueprint function on activation, the function now receives additional arguments for context: the Level Variant Set Asset, the Variant being activated, and the Variant Set that owns the activated Variant. This context helps you set up complex responses, such as activating other Variants that are dependencies for the one being activated.

  • **Editor Performance (Experimental). **This release makes significant performance gains when saving newly created Assets, creating proxy meshes, decomposing geometry into convex hulls, and using Datasmith to import from .udatasmith, Deltagen, and VRED.

  • **Modeling Tools (Experimental). **We continue to make improvements to our experimental in-viewport geometry editing and sculpting tools. This release focuses on adaptive mesh sculpting, interactive tools for creating and modifying polygroups and UV mappings, and mesh repair tools.

  • **Live USD (Experimental). **The USD Importer is now faster and more responsive, with multi-threaded import and better rendering performance. It also makes your scene integrate better into Unreal workflows — for example:

    • Each USD Layer is brought in with its own Sequencer track.

    • The importer brings in the USD Purpose of your scene objects (default, render, proxy, guide).

    • You can assign Unreal Materials to your USD Primitives.

    • The USD Stage is now exposed to Blueprints and to Python, so you can control it from editor scripts that you write.

    • If you have a custom USD schema, you can hook up custom C++ callback functions to handle your own data structures.

Editor Updates:

  • **Disaster Recovery. **The Data Recovery system records transactions and sends them to a recovery service. When the Editor detects that a session has ended abnormally, it sends a request to the recovery service and retrieves the last recorded session.

  • **Editor/Paint Mode Refactor. **The Mesh Paint Mode has been upgraded. The update preserves the functionality of the original tool, but provides a smoother workflow and UI.

Gameplay and Scripting Updates:

  • **Improved Convert-to-Blueprint. **When creating a Blueprint from multiple selected Actors in the Level Editor, you can now make a Blueprint with a single master Actor that has one Child Actor Component for each of the Actors you selected. This means that you can now save groups of Actors to a single Blueprint and place those Actors around your Level, or in other Levels, by dropping in (or spawning) just one Blueprint.

Mobile Updates:

  • **New Default Rendering Feature Levels. **OpenGL ES3.1 is now the default feature level for Android, and Metal 2.0 is the default feature level for iOS.

  • **Android NDK 21. **Unreal Engine 4.25 now uses NDK 21, providing Android toolchain improvements and optimizations as well as improved compatibility for Android code libraries. This will require a new setup process, as UE4 Android developers must now install Android Studio instead of CodeWorks.

  • **Android App Bundles. **In 4.25, developers now have the option to create an app bundle build for the Google Play Store instead of a traditional APK. Instead of creating a range of APKs for the devices you want to support, the Google Play Store uses a single app bundle (AAB) to create a customized APK for the user’s device when a user downloads an app. Additionally, the final APK distributed to a user’s device through an app bundle build can have a size of 150 Mb instead of 100.

  • **iOS Launch Storyboards (Beta). **We have added support for using XCode storyboards as launch screens on iOS devices, providing both improved means for scaling iOS launch screens and animation features. Apple now requires the use of storyboards instead of static launch screens.

  • **Android Game SDK (Beta). **We now support Google’s Swappy frame pacing solution, providing more stable frame rates and improved touch input latency.

  • **Eye Adaptation on Mobile (Beta). **Auto-exposure can now be enabled on mobile devices alongside other post-processing features.

  • **Virtual Texturing on Mobile (Experimental). **The virtual texturing features introduced in 4.23 are now available for use on mobile devices.

  • Added support for Google’s Billing Library 2.0.

Networking Updates:

  • **Networking Insights (Experimental). **Unreal Insights now includes Networking Insights to visualize network gameplay data and identify performance bottlenecks or faulty code.

Niagara Updates:

  • Audio Data Interface. The Audio Oscilloscope and Audio Spectrum data interface modules give you the tools to create audio visualizations using Niagara in UE4.

  • **Direct Reads. **The Particle Attribute Reader data interface module gives you the ability to directly read parameter data from other parts of the source emitter, or to target other emitters and get parameter data from them.

  • **Parameter Panel UI Update. **The Parameter Panel UI in the Niagara Script Editor has been improved, and now more closely resembles the Parameters Panel in Blueprint Visual Scripting.

  • **Effect Types. **The new Effect Type Asset enables you to set certain common properties that apply to all effects of that type.

  • **Emitter Inheritance Reparenting. **Inheritance is a powerful tool in Niagara; now you can change the parent of an emitter. When the parent is changed, any modules in the child emitter that match the new parent will be updated; but anything that does not match the new parent emitter will be preserved on the child emitter.

  • **Platform Scalability. **There are now ways to directly change how your emitters and systems perform on different platforms. This enables you to improve the performance of Niagara across platforms. Scalability settings are in Emitter Properties as well as in the Effect Type Asset.

  • **Removal of Namespaces from Module Authoring. **The use of Namespaces has been significantly overhauled. When you declare the usage of a parameter, you assign the parameter to a specific category (Inputs, References, Outputs, Locals) and give it a target Scope to read from.

  • **Scratch Pad. **The Scratch Pad is a miniature version of the Script Editor that displays right in the Niagara Emitter and System Editor. With the Scratch Pad you can experiment with creating custom modules and dynamic inputs, and you can either use them locally, save them for use in other emitters or systems, or delete it and start over.

  • **Selection Stack UI Improvements. **We have improved the Selection panel’s UI! Now you can cut, copy and paste modules, inputs and renderers.

  • **Simulation Stages (Experimental). **We have a new framework in Niagara called Simulation Stages. This framework has a set module (called a simulation stage) that evaluates all particles before a subsequent stage.

Rendering Updates:

  • **Auto Exposure improvements. **Different metering modes have had their settings unified so that it is easier to work. There are several new features and changes that go along with this update. Also, with these changes means that we have also broken backwards compatibility and provide an upgrade path. However, you will want to take these changes into consideration for your project. Look for our “How auto exposure has changed in 4.25” technical blog for more information.

  • Shader Model Improvements for Anisotropic, Clear Coat, and Transparency. Improvements include:

    • Anisotropic Materials (Beta). UE4 now supports anisotropic material properties. It can be enabled in the Project Settings under the Rendering section and use the Anisotropic input on the main material node to control its strength.

    • Clear Coat Improvements. The clear coat BRDF has been improved to be more physically accurate with punctual lights. Use the Clear Coat Shading Model and enable the Dual Normal settings in the Project Settings under the Rendering section.

    • Thin Transparency. We have a new Shading Model for Thin Transparency that enables you to achieve PBR tinted and colored transparent objects, such as tinted glass. Use the Thin Transparency shading model and the Thin Transparency expression in the Material graph to set up and use this type of material.

  • **Ray Tracing Updates. **Includes:

    • Niagara Mesh Emitter support for GPU and CPU

    • Supports the Anisotropic and Clear Coat Shading models

    • The Path Tracer now supports Clear Coat materials for ground truth reference image comparison.

  • **Hair Rendering and Simulation Improvements (Beta). **Improvements include:

    • No longer need to use a Niagara asset with your Groom Assets. These properties are exposed directly to the Groom asset now.

    • Additional options added to the Groom Asset to control the Tip, Root, and Hair Clip length.

    • Improved stability, performance, and additional workflows, especially around load time of assets.

    • Better handling of physics asset interpolation for better collision detection against the body.

    • Groom are now transferable between meshes that share the same UV space.

  • **Sky Atmosphere Updates. **Includes:

    • Transmittance is now evaluated per pixel ensuring luminance on planet surfaces viewed from space looks correct when enabled via console variable.

      • Enabling this also enables the planetary atmospheres to cast a shadow on nearby moons.

    • The SkyAtmosphere component now has a mode to transform it relatively according to the component transform and support hierarchy.

    • Material Layers (Beta). Improvements include:

      • Blueprint functions to modify material layer parameters at runtime.

      • Improved behavior for base materials that makes layer changes to be propagated to any child instances.

Sequencer Updates:

  • **Adding Spatialize Master Audio to Sequencer. **You can now add Spatialized Master Audio to a Sequence by attaching audio sections to individual track components at specified times. Audio icons are drawn at the attachment points in the viewport to help visualize the spatialization.

  • **Camera Cut Blending. **The Camera Cut track now supports blending. This allows you to easily blend in and out of a cinematic or blend between different cinematic cuts.

  • **Improved Camera Shakes: **Spatialized camera shakes are now improved for ease of use and creating more realistic shakes, and eliminates the need to use Blueprints to setup the shakes.

  • **Take Recorder Enhancements. **There are several quality of life enhancements to streamline using Take Recorder and improving the overall user experience, such as specifying the frame rate of a recorded sequence and recording keyframes.

  • Template Sequences (Beta). Template Sequences allow you to easily reuse an animation sequence on multiple objects and cinematics, such as dynamically playing cinematics on arbitrary characters and props. They also reduce asset duplication and saves time overall.

  • **Introducing Movie Render Manager for Exporting Media (Experimental). **The new Movie Render Manager focuses on improved quality, ease of use, and streamlined integration into production pipelines, and is perfect for non-real time situations, such as creating game trailers.

  • **Animating Rigged Characters in Level Editor with Control Rig (Experimental). **Using Control Rigs, you can animate rigged characters in the Level Editor, and then export them as animation sequences to use game.

Virtual Production Updates:

  • **nDisplay Improvements. **We have added several features designed to improve the experience of using nDisplay, including:

    • Added support for specifying GPU affinity in order to leverage multiple GPUs and optimize overall system complexity reducing the amount of computers required for nDisplay projects.

    • Implemented API RHI layer interprocess texture sharing to allow sub-processes to access gpu texture data back and forth in a safe and efficient fashion.

    • Implemented Nvidia’s new API for synchronization to avoid special cases of tearing.

    • You can now specify a custom mesh to use to warp the rendered output.

    • You can now specify viewport rendering scale in Blueprint at runtime or parameter in the config.

    • Ability to specify a collection of layers to hide from wall rendering.

    • Ability to specify multiple camera frutums for productions utilizing multiple cameras simultaneously.

    • Ability to rotate the rendered output to accommodate the most efficient wall layout for the physical set.

    • Improved how LiveLink works when used in conjunction with mult-iuser workflows.

    • Improved stability of greenscreen tracking markers using the UVs of the warp mesh or screen space for mapping.

  • **3D Text Improvements (Beta). **3D text has received several improvements for this release, including:

    • The Text 3D Actor now supports native True Type Fonts (.ttf) or Open Type fonts (.otf).

    • 3D Text meshes are now cached for better performance.

    • Procedural animations can be applied to 3D Text using the Text3DCharacterTransform component.

    • 3D Text can be extruded and beveled.

    • Materials can be applied to 4 faces: Front, Bevel, Sides, and Back.

    • Multiple formatting options are now available, such as alignment, kerning, line spacing, word spacing, etc.

  • **Timecode Improvements. **We’ve improved how you work with timecodes in your Unreal Engine projects to be more robust and easier to setup and troubleshoot without needing to involve an engineer.

XR Updates:

  • Hololens 2. Unreal now supports App Remoting from a desktop app without Unreal Editor running. We also added OpenXR support displaying pixels on HL2, late stage reprojection, enabled mixed reality capture from a 3rd person camera view, and eliminated render target copies for the frame, depth, and 3rd camera render buffers, which should reduce latency by 2 ms/frame.

  • **Azure Spatial Anchors Support for Hololens 2 (Beta): **Azure Spatial Anchor support for the Hololens 2 has been added to Unreal. Spatial anchors will allow holograms to persist in real-world space between sessions.

  • **Magic Leap. **For developers targeting Magic Leap, we added support for setting up shared world experiences using new GameMode, PlayerController and GameState classes, added more utility APIs for content persistence, added API integrations for Connections and camera intrinsics, Revamped Magic Leap’s the AugmentedReality interface to make migration of handheld AR project to Magic Leap easier, improved performance and stability of Zero Iteration, added Visual Studio Debugger support for Blueprint-only projects, and provided support to change thread affinities via config vars.

  • **Motion Controller Keys Removal. **Motion Controller keys were deprecated in 4.24 and are now fully removed in 4.25.

Fixed in Preview 2
Fixed! UE-89378 Montage Sections tab does not scroll when it includes many sections
Fixed! UE-89320 Editor Closes/Crashes after adding animation sequences to an Anim Montage are undone
Fixed! UE-88277 Crash in Editor After Editing an Animation in the Curve Editor and Rapidly Pressing CTRL + Z
Fixed! UE-86626 GitHub 6538 : SteamAudio: Add Dynamic Geometry Support
Fixed! UE-87178 Editor process does not exit due to infinite wait in AudioDevice FadeOut
Fixed! UE-88888 Source Rotation for Ambisonics Sources is not working.
Fixed! UE-90136 Fix issue with automation driver message handling
Fixed! UE-90056 Do not use crash reporter client in monitor mode for dedicated servers
Fixed! UE-89329 QAGameServer -iostore does not call the IoStore commandlet
Fixed! UE-89293 Packaging QAGame with bUseIoStore in Binary fails with a UAT crash - EXCEPTION_ACCESS_VIOLATION reading address 0x00000044 - ParsePakOrderFile
Fixed! UE-87771 End user can specify “-nopak -iostore” in a BuildCookRun commandline, which will skip using IoStore, causing end user confusion
Fixed! UE-86065 Uproperty Map<TWeakObjectPtr<UObject>, FString> crashes when Item is added from Instance’s Details Panel
Fixed! UE-90213 Installed Build Command Fails with Visual Studio 2019
Fixed! UE-81222 Packaging Mac Client through the File Menu Dialog does not create app bundle
Fixed! UE-89418 Crash Report Client does not run in background of packaged UE4Game
Fixed! UE-89829 GitHub 6742 : # Ignore documentation generated for C# tools
Fixed! UE-89867 Missing new plugins from enterprise templates
Fixed! UE-89895 Test_SetByCallerStackingDuration encounters warning: No GameplayCueNotifyPaths were specified in DefaultGame.ini
Fixed! UE-87809 Update ObjectMacros.h to include DeterminesOutputType and any other MD_ / etc… flags we can find that are currently undocumented
Fixed! UE-89736 CLONE - AI controlled pawn does not navigate around obstacles
Fixed! UE-89908 UBlueprint::SearchGuid is unused and can be deleted
Fixed! UE-89939 Deleting struct in Windows Explorer leaves dirty traces in BPs.
Fixed! UE-88129 User-instanced subobjects owned by a streaming sublevel’s Blueprint CDO cannot be garbage collected with the owning world after the sublevel has been reloaded in the editor.
Fixed! UE-88789 Dispatch Event binding on a component breaks when an actor using it changes state and compiles.
Fixed! UE-68023 Undo of apply instance changes does not restore instanced components
Fixed! UE-44333 Collision does not appear to work in a packaged game after nativizing child assets
Fixed! UE-90285 Crash after selecting ‘Assign to Selected Actor’ on a level blueprint bound event and compiling the level blueprint
Fixed! UE-84760 Strange error attempting to use struct inputs within Macro Library
Fixed! UE-89719 Changing the input pin type of a macro graph does not invalidate any previous connections
Fixed! UE-90087 Blueprint breakpoints do not trigger on Begin Play
Fixed! UE-79501 When duplicating a Blueprint that has modified Blueprint Display Name, we should reset it or increment it on the new BP
Fixed! UE-85090 K2Node_FunctionResult needs to handle renames in its string pointers to default objects
Fixed! UE-89891 Changing mobility on one component will result in multiple toasts about attached components’ mobility changing
Fixed! UE-88804 [CrashReporter] UE4Editor-Engine!UWorld::SpawnActor(UClass *,FTransform const *,FActorSpawnParameters const &) [LevelActor.cpp:395]
Fixed! UE-85398 FXmppModule::ProcessPendingRemovals is never called, causing closed xmpp connections to never be cleaned up
Fixed! UE-89833 [Pixel Streaming]: Update Encryption lib
Fixed! UE-89854 Platform extensions showing up under an additional Engine folder in UE4 solution
Fixed! UE-70197 Background Blur in UMG is filled with black when UI.CompositeMode is used in HDR
Fixed! UE-89825 Gpu Profiler Events lastStartTime assert
Fixed! UE-89798 Overtime, Crash Report Client fail to launch when editor crash on Linux
Fixed! UE-89432 Linux log spam when extra window open
Fixed! UE-84939 CrashReportClient does not launch on Linux when issuing ‘debug audiogpf’
Fixed! UE-89918 GitHub 6746 : Re-enabled FMacPlatformProcess::IsSandboxedApplication.
Fixed! UE-89165 QAGame Packaged with Sig/Pak Files fails to Launch on Mac
Fixed! UE-89933 TM-ShaderModel fails to launch on iPad Air 2 (any <= A8)
Fixed! UE-89822 Global shaders don’t be recompiled after turn on/off MobileHDR
Fixed! UE-89810 Provide more control over OBBs mounted at startup
Fixed! UE-89660 Custom Depth comparisons on mobile incorrect when no custom depth primitives are rendered
Fixed! UE-89451 Add support for “Apple Development” certificates
Fixed! UE-89450 QQ Pinyin Input method cannot input characters into EditableTextBox on Android Platform.
Fixed! UE-90038 It will crash after set r.Mobile.AllowMovableDirectionalLights to false
Fixed! UE-89998 New SetupAndroid.bat (and other scripts) not present in binary build
Fixed! UE-89986 ActionRPG assertion exiting to main menu on iOS
Fixed! UE-90230 [Action RPG] Smoke effect behind unpurchased items has hitching issues which are exacerbated by longer game sessions
Fixed! UE-89915 recompileshaders console command is broken during COTF
Fixed! UE-89879 Crash upon using RHI -vulkan with error: “Entry.Offset > PrevOffset”
Fixed! UE-89811 Invalid Shader Param in LightPropagationVolume.
Fixed! UE-89370 SimplifySkeletalMeshLOD assert during cooking
Fixed! UE-89175 The editor crashes if textures are dragged into a material
Fixed! UE-90265 [CrashReport] Assertion failed: CurrentScope == nullptr
Fixed! UE-90079 Crash when opening the editor on Linux - Failed to compile global shader FHairEnvironmentLightingVS with Fatal error: [File: ShaderCompiler.cpp]
Fixed! UE-90033 “Assertion failed: ClearValue.ColorBinding == EClearBinding::EColorBound” Occurs When Trying To Open QAGame With -OpenGL
Fixed! UE-89993 SkyAtmosphere.ViewPlanet automation tests fail with screenshot differences on DX12
Fixed! UE-89995 Multiple VolumetricFogDynamicLighting automation tests fail with screenshot differences on DX12
Fixed! UE-89610 Crash changing texture format for a texture
Fixed! UE-89472 Cascade particles flash during playback of Anim sequence
Fixed! UE-89900 LPVs have incorrect PreExposure
Fixed! UE-89883 Android Shader crash - Errors compiling global shader FHairEnvironmentLightingPS
Fixed! UE-89968 CornellBox Engine Tests fail due to dark shadows in Ambient Occlusion
Fixed! UE-82636 Material layers do not prompt recompilation of all Materials that utilize them
Fixed! UE-89916 New matrix parameters in the stack have random values.
Fixed! UE-89884 Dynamic Beams endpoints and tangents being stretched instead of recalculated
Fixed! UE-89777 Niagara Ribbon Facing Mode Custom Side Vector does not work correctly
Fixed! UE-89778 Assert when dragging and dropping a module with a data interface.
Fixed! UE-89503 Crash while System is compiling - Assertion failed: !bDeletedThroughDeferredCleanup
Fixed! UE-89707 Unable to click delete button when module name is too long in Niagara Editor
Fixed! UE-89379 Niagara Editor unpausing
Fixed! UE-89362 Select by simulation target now generates errors in the module graph
Fixed! UE-89437 Sprite cutout textures do not take Particles.UVScale into account
Fixed! UE-89225 The SetEmitterEnable BP function doesn’t work
Fixed! UE-90219 It is too easy to mess up Emitter State conversion from Emitter Life Cycle in deprecation
Fixed! UE-90187 Extreme Flickering Occurring In Entire Level When Facing Niagara Systems on Android
Fixed! UE-90177 Module and multiple input copy/paste doesn’t work correctly with static switches.
Fixed! UE-90106 Text overlaps with buttons in selection stack.
Fixed! UE-89280 The engine crashes if you attempt to rename a module in the stack in 4.25
Fixed! UE-89372 Creating Niagara.Numeric crashes unreal
Fixed! UE-88802 Niagara Viewport does not display editor scalability setting
Fixed! UE-88981 Out of sync engine tests for skeletal mesh
Fixed! UE-87938 CPU emitters do not generate warnings if textures are referenced within it
Fixed! UE-87600 Crash clearing a Niagara Parameter Collection Instance’s Collection
Fixed! UE-88765 Get Niagara Emitter Vec3 Attrib Results in Hard Crash
Fixed! UE-88754 Creating a Matrix within an Emitter Spawn crashes the Editor
Fixed! UE-86912 Crash when right-clicking a node in a Niagara system and closing the Niagara editor
Fixed! UE-82074 Niagara systems do not update their thumbnail on first click of the thumbnail update button
Fixed! UE-85665 Rejection sampling, from the particle spawn script, is not supported
Fixed! UE-86683 Modules need kick-starting after a ‘fix-issues’ is used.
Fixed! UE-77005 Assert - Numeric types can be used as inputs for Dynamic Function Scripts
Fixed! UE-76871 Niagara Sample Static Mesh. Source Not Working
Fixed! UE-76161 DataInstance.Alive doesn’t propagate across spawn/update scripts
Fixed! UE-76002 VM crash when inserting certain module in Niagara stack
Fixed! UE-67339 Niagara spams warnings about sampled static mesh vert colors when none are available
Fixed! UE-66243 Editor crash when adding multiple receivers to a Niagara emitter’s event handler
Fixed! UE-66256 Inconsistent rules with our variable default settings functionality make it harder to author content
Fixed! UE-89701 Error messages spam when selecting multiple emitter in Timeline
Fixed! UE-90115 Crash when renaming and undoing renames.
Fixed! UE-90110 Impossible to tell from the system overview which items have been renamed or what their original name was.
Fixed! UE-90108 Delete trash can showing up for all selection stack groups even when they can’t be deleted.
Fixed! UE-89950 Can not undo deleting a renderer from the stack view.
Fixed! UE-90109 Can not rename renderers.
Fixed! UE-87220 Crash when pasting certain modules within a Niagara Emitter
Fixed! UE-89898 SimStagesGrid2D test fails due to screenshot mismatch
Fixed! UE-89914 EngineTest crashes prior to completion ‘InstancedStaticMesh.cpp] [Line: 1254]’
Fixed! UE-89439 Niagara sprites are not visible in ray tracing
Fixed! UE-89160 r.RayTracing.ForceAllRayTracingEffects 1 with raytracing enabled crashes the editor
Fixed! UE-89223 Niagara crashes the editor when Ray tracing is enabled and static meshes are assigned to a mesh renderer in 4.25
Fixed! UE-89997 Multiple Niagara screen shot tests failed w/ DX12
Fixed! UE-88123 Inconsistent lighting results in jittering shadows with ray tracing enabled
Fixed! UE-80815 GitHub 6243 : Small improvements to reflections
Fixed! UE-77668 Crash on failed PSO creation with raytracing on a Quadro 8000 (…hash PKNDJIND )
Fixed! UE-77061 Particle reflections lose accurate motion vectors during camera translations
Fixed! UE-83322 [CrashReport] UE4Editor-Engine!ProcessCompiledGlobalShaders(TArray<FShaderCommonCompileJob *,TSizedDefaultAllocator<32> > const &) [ShaderCompiler.cpp:4637]
Fixed! UE-81590 Ray tracing ignores enable/disable flag for sections
Fixed! UE-89880 Platform-specific shader debug information generation does not work
Fixed! UE-86272 Crash when Baking Materials using DX12
Fixed! UE-72725 Support for DRED on D3D12
Fixed! UE-89624 Crash if the number of spline points is less the one spline point currently selected
Fixed! UE-89594 Changing Weight and Texture paint mode settings do not persist when switching menus.
Fixed! UE-89401 One-off crash referencing TickableEditorObject.h:81 when viewing show flags dropdown
Fixed! UE-89294 [CrashReport] UE4Editor-UnrealEd!FEditorModeTools::ActivateMode(FName, bool) [EditorModeManager.cpp:928]
Fixed! UE-89337 [CrashReport] UE4Editor-UnrealEd!UUnrealEdEngine::CanSelectActor(AActor *,bool,bool,bool) [EditorSelectUtils.cpp:492]
Fixed! UE-89059 Layer Parameter Panel Crashes
Fixed! UE-88992 Mac - Unable to drag-drop import with special characters
Fixed! UE-87910 ClassViewer creates wrong object after losing focus
Fixed! UE-87649 Crash when compiling a running Editor Utility Widget
Fixed! UE-87472 Entering experimental Mesh Paint Mode paint mode disables mouse viewport nagivation
Fixed! UE-87032 [CrashReporter] UE4Editor-MeshPaint!TexturePaintHelpers::CreateTempUncompressedTexture(UTexture2D *) [TexturePaintHelpers.cpp:350]
Fixed! UE-86260 [CrashReport] UE4Editor-Core!FText::IsEmpty() [Text.cpp:276]
Fixed! UE-72760 Distance-scaled camera speed setting causes undesired behavior with flight controls
Fixed! UE-89627 Packaging QAEnterprise for Mac fails - ERROR: QAEnterprise modifies the value of GlobalDefinitions. This is not allowed, as QAEnterprise has build products in common with UE4Game.
Fixed! UE-87689 Safe Zones are not being drawn in New Window PIE
Fixed! UE-89767 Text Entry is not applied or cancelled on focus lost during Rename

UE-89760 Crash creating a Dataprep asset - Fatal error: [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/CoreUObject/Private/Misc/PackageName.cpp] [Line: 497] 

LongPackageNameToFilename failed to convert ‘/Game’. Path does not map to any roots.
Fixed! UE-89508 Dataprep - Crash outputing in the same folder as the dataprep instance
Fixed! UE-90147 Incorrect location of spawned actors using Spawn Actors At Location
Fixed! UE-89334 Co-ex issue with Datasmith exporters.
Fixed! UE-89279 Crash exporting revit files (VCredist not installed by our exporters setups)
Fixed! UE-89088 Dataprep recipe node renamed ‘Reinstanciated blue print’ upon re-compiling a blueprint user defined node.
Fixed! UE-87594 Graph panel resets to initial view when an action is added to the graph
Fixed! UE-88619 Crash when renaming a dataprep action
Fixed! UE-88788 USD Stage - Undo/redo has incorrect behavior
Fixed! UE-79198 Dataprep - 3d viewport, Lightmap density not rendered properly
Fixed! UE-86875 Annoying movement of the graph panel when dragging an item and entering by the left side of the window
Fixed! UE-90146 Dataprep - widgets bleeds outside of action node when moving separator
Fixed! UE-90052 Crash when creating dataprep asset in 4.25 preview 1
Fixed! UE-90181 Crash when reimporting animated scene with dataprep while sequencer is open
Fixed! UE-89598 Dataprep Warning msg to overwrite level appears twice
Fixed! UE-89565 Dataprep - F2 not working on Actions as it should
Fixed! UE-89580 Dataprep - Crash trying to input relative navigations to level creation
Fixed! UE-89579 Dataprep - Level name should be sanitized
Fixed! UE-89576 Dataprep - Move step to + Add Step should rename the button accordingly to the action
Fixed! UE-89550 DataPrep - Output to Folder should do a sanitize check on the name of the folder
Fixed! UE-89704 CAD - RHINO - Re-import DS scene with Generate ligthmap UV doesn’t work
Fixed! UE-88545 Some entities in Revit exporter Datasmith scenes have an offset on their meshes
Fixed! UE-89848 Skeletalmesh Insert LOD is messing material ID and section data
Fixed! UE-90253 Crash when adding LOD and saving after
Fixed! UE-89531 AutoSave detects dirty assets after saving changes made to a level containing a HLOD - causing a crash
Fixed! UE-89905 Python USD tests fail with no suitable file found for _usdUtils.so
Fixed! UE-89784 Crash reloading geometry cache from abc file after a PIE
Fixed! UE-89779 USD Stage - Camera transforms are incorrect in PointInstancedMedCity sample scene
Fixed! UE-89679 Crash opening animation sequence from Skeletal Mesh imported via Alembic file
Fixed! UE-89422 USD Stage - Hiding a Prim is broken
Fixed! UE-89118 USD Stage - Phantom prims are created when a new one is given the same name as another top-level prim
Fixed! UE-90127 USD Stage - Skeletal meshes disappear when toggling visibility
Fixed! UE-90041 USD Stage - can’t hide Mesh type Prim
Fixed! UE-77474 Unit size is not considered at import from USD file
Fixed! UE-82921 Opened USD Stage window is not updated when opening level with or without UsdStageActor
Fixed! UE-83038 USD Stage - Leaving a Prim name empty leave an item in the tree that can’t be used
Fixed! UE-89873 Shader Warnings entering Landscape Mode in LT2020_Chaos
Fixed! UE-89641 Crash when auto saving after painting landscape grass with PhysX enabled
Fixed! UE-89620 Crash when auto saving after painting landscape grass with Chaos enabled
Fixed! UE-89629 Crash loading level after moving Edit Layer landscape to the persistent level
Fixed! UE-90272 [CrashReport] UE4Editor-Landscape!FLandscapeGrassWeightMeshProcessor::Process
Fixed! UE-89860 Changing localization to Japanese localizes Help URL to EpicGames.com
Fixed! UE-89644 CLONE - CLONE - Material layers editor bugs
Fixed! UE-90086 Changing the channel name inside of the channel mask parameter node results in crash
Fixed! UE-89557 Merging actors with Merge Materials and Opacity Mask enabled crashes the editor when placed in level
Fixed! UE-89887 3D Gizmo is show in Modeling Mode even with no selection
Fixed! UE-89495 Crash after undoing painting on a skeletal mesh
Fixed! UE-90271 [CrashReport] UE4Editor-MeshModelingToolsEditorOnly!UShapeSprayTool::Setup() [ShapeSprayTool.cpp:77]
Fixed! UE-90220 Mouse gets stuck in capturing state in various Modeling Mode Tools
Fixed! UE-90205 Normals do not properly update after undo/redo in PolyEdit Tool
Fixed! UE-90165 Typing new value into Subdivisions field of Displace Mesh Tool doesn’t work
Fixed! UE-90163 Checkerboard Material does not work in multiple Tools
Fixed! UE-87675 Cancel Tool Crashes after switching to Cinematic Viewport
Fixed! UE-87545 Checkerboard Material does not work in Inspector Tool
Fixed! UE-87544 Wireframe toggle should not invalidate current result in Simplify & Remesh
Fixed! UE-87445 Checkerboard material mode in UV tools seems not to work
Fixed! UE-84209 All material slots display slot 0 when using the Utility tools in Mesh Editing
Fixed! UE-86277 One off Crash when deleting faces on a mesh in modeling mode
Fixed! UE-70360 MeshEditing - Crash when deleting sections
Fixed! UE-83273 draw polygon undo removes completed polygons but does not reset in-progress polygon state
Fixed! UE-83097 draw polygon tool inconsistent click behavior
Fixed! UE-89239 Camera and controls invert in static mesh editor when looking straight down
Fixed! UE-84211 Normal Maps are flipped when using Utility tools in Mesh Editing
Fixed! UE-89934 QAGame allows the user to Reload newly-created unsaved Asset
Fixed! UE-89912 MoviePipeline: Canceling mid-render soft-locks the Editor
Fixed! UE-89896 MoviePipeline: First frame is evaluated overly often
Fixed! UE-89847 PNG sequence is rendered fully transparent
Fixed! UE-89773 Crash rendering FrameAccuracyMaster_Master with Movie Render Queue - CurrentCameraCutIndex >= 0 && CurrentCameraCutIndex < CameraCuts.Num()
Fixed! UE-89764 Audio tracks on multiple rows not playing back
Fixed! UE-89708 Event counter showing incorrect count during sequencer playback
Fixed! UE-89429 Recorded data is offset when not recording from 0
Fixed! UE-90209 Sequencer: Next/Prev Key loops to start/end when at last/first key
Fixed! UE-90173 Movie Render Queue does not render fade tracks
Fixed! UE-90085 Using the shot_name token in File Name Format writes out DefaultShotName for every shot
Fixed! UE-87811 Warm Up count setting under Anti-aliasing Render Movie Pipeline Settings
Fixed! UE-87300 Engine Warm Up Count not restoring when Local Render is finished engine time is faster
Fixed! UE-85324 TakeRecorder: Place source-specific settings before User Settings
Fixed! UE-89619 Timed Input Monitor - Timecode Provider is not updated when changed from the Project Settings (needs restart)
Fixed! UE-89513 LiveLink default preset fails to load if it depends on external modules
Fixed! UE-90196 LiveLinkOverNDisplay plugin does not follow naming convention of “Live Link” and “nDisplay”
Fixed! UE-90039 LiveLink over ndisplay crashes when using a preset in project settings
Fixed! UE-90006 Virtual Production blueprint utilities fail to compile
Fixed! UE-88434 Vprod: 60 FPS timecode on ref pin
Fixed! UE-80154 Teleport to a bookmark doesn’t teleport the user to the correct location
Fixed! UE-89656 SteamVR icon displayed prominently in the Unreal Editor toolbar by default if SteamVR is installed
Fixed! UE-89321 SteamVR turns off vsync globally
Fixed! UE-89044 Object outlines vibrate/jitter when selected in editor viewport
Fixed! UE-87013 steamVR runtime is called on editor launch
Fixed! UE-81832 ARKit3QA - Should disable Automatic Signing option

Fixed in Preview 3
Fixed! UE-90544 Editor analytics reads the wrong key to report the user total RAM
Fixed! UE-90460 Curve Editor - Transform Tool not transforming multiple keys on release
Fixed! UE-90361 AudioSoloSound**** is not working as expected
Fixed! UE-88739 Audio: Soundfield Submix: Sources sent through Oculus Binaural encoding are distorted
Fixed! UE-88733 Audio: Soundfield Submix: Changing encoding on the Master Reverb Submix will break reverb
Fixed! UE-89289 Editor crash PIE with number of players set to 4 on Linux | AudioMixerSubmix.cpp at Line 956
Fixed! UE-87584 GitHub 6617 : Changed static Up- and Downmix Scratchbuffer to member variable in FDecodingSoundSource
Fixed! UE-84654 Consider enabling DSP/ synthesis plugin by default
Fixed! UE-89335 [CrashReport] UE4Editor-AudioMixer!Audio::FMixerSource::Init(FWaveInstance *) [AudioMixerSource.cpp:124]
Fixed! UE-90427 If UE Root Directory is A Junction Errors Are Encountered During Startup
Fixed! UE-90394 The total amount of physical ram is incorrectly reported by FPlatformMemory::GetStats()
Fixed! UE-90254 Debug crash in Object Hash when loading blueprint editor
Fixed! UE-87699 Launching standalone shootergame would crash | GarbageCollection.cpp Line: 2561
Fixed! UE-90600 Several Warning: ReadToken: Bad quoted string warnings on UE4Editor launch
Fixed! UE-90162 Access Violation getting Engine Directory when launching Cooker through ProjectLauncher with Custom Launch Profile for EngineTests
Fixed! UE-90537 Unable to Compile Plugin on Mac OS with UE4.25
Fixed! UE-90547 UBT exception (and possible editor corruption) attempting to rebuild a project created from Binary engine - Could not find file ‘…Engine\Binaries\Win64\UnrealHeaderTool.target’
Fixed! UE-90360 Collaborative viewer needs to be available only on Windows
Fixed! UE-55051 AutoCreateRefTerm does not provide a way to specify that a TArray property within a struct should have a default value created for it if none is provided
Fixed! UE-90599 SpawnedAttributes can contain invalid data
Fixed! UE-90295 Deadlock if GC is triggered during the FiB index gather phase for loaded assets after editor startup.
Fixed! UE-35607 Setting child actor component offset breaks child component variables set in parent constructor
Fixed! UE-12390 Blueprints: Potentially incorporate the Actor instance name into the component name(s) when “harvesting” components from selected Actor instances to create a new BP class.
Fixed! UE-90008 Crash when mousing over array parameter in Blueprint function graph while debugging
Fixed! UE-90552 Subcomponent doesn’t appear in IWCE until unselecting and reselecting Actor
Fixed! UE-90307 RF_DefaultSubObject cleared incorrectly via Copy/Paste
Fixed! UE-89825 Gpu Profiler Events lastStartTime assert
Fixed! UE-90325 Unable to package for Android on Binary | Missing project.properties and package.xml
Fixed! UE-90300 Runtime Virtual Texture crash on mobile
Fixed! UE-90242 TM-ShaderModels crash on iOS with GPU Hang Error on com.Metal.CompletionQueueDispatch thread
Fixed! UE-90199 SunTemple loads into a black screen on some Android devices
Fixed! UE-89802 Crash on Launch on iOS failed to initialize ShaderCodeLibrary required
Fixed! UE-89793 Android GL ES3_1 rendering issue around GPU particle sorting.
Fixed! UE-89604 TM-ShaderModel fails to launch on iOS devices with A10 chips
Fixed! UE-90617 Change small OBB limit to 1 GiB instead of 500 MiB
Fixed! UE-90616 Added more control over Gradle project
Fixed! UE-90615 Enabled WEBM playback in Android media player
Fixed! UE-90202 [TM-ShaderModels] Eye Adaptation adjust slowly on Android devices with Adreno 6xx
Fixed! UE-90413 GitHub 6772 : Spelling correction for “th ecommand”
Fixed! UE-90354 Selecting the Build option in the Editor Toolbar crashes the Editor
Fixed! UE-90323 Editor crash changing to mobile rendering preview levels in ActionRPG map
Fixed! UE-90053 Crash when pressing F5 in a Packaged Game
Fixed! UE-90013 Closing EngineTest -game results in a crash Assertion failed: Primitives.Num() == 0 - RendererScene.cpp
Fixed! UE-90014 Running EngineTest -ExecCmds=“Automation RunTests Group:Rendering; Quit;” -game crashes soon after starting with Assertion failed: AttachmentCounter.GetValue() == 0 - PrimitiveComponent.cpp
Fixed! UE-89902 SK_Sampling_PerTimeStep fails due to screenshot mismatch
Fixed! UE-89175 The editor crashes if textures are dragged into a material
Fixed! UE-88507 Crash referencing FShaderPipeline when launching Engine Test StuM_DeferredDeletionTest.umap
Fixed! UE-87903 Ensure when opening QA-MeshPaint
Fixed! UE-89698 Changing the engine quality settings will cause the editor to crash
Fixed! UE-90490 Dragging more than one Texture into the Material Editor causes a crash
Fixed! UE-84919 Vulkan leaks memory when opening and closing windows
Fixed! UE-88577 Deferred Decals Broken, also impacting SSR
Fixed! UE-88443 Placing ‘Groom’ asset into scene results in assertion failed
Fixed! UE-80769 when using many emitters (10+) I notice significant slowdown by rendering the Niagara UI. I’m currently tabbing away from it to see the result play back smoothly in engine. I’m assuming this is due to the cost of the UI not the simulation itself.
Fixed! UE-90407 Add some sort of drop highlighting/filtering to Parameter Map Get/Set nodes
Fixed! UE-90314 Compile errors are difficult to find.
Fixed! UE-90120 Ribbons with tesselation seem to explode at some point
Fixed! UE-90203 Crash when redoing duplication of an emitter in a system
Fixed! UE-89959 Multiple Niagara tests fail due to missing or moved particles -vulkan
Fixed! UE-89906 TickGroupTest fails to complete due to time out
Fixed! UE-89875 Emitters cross communicate and depth buffer queries in an emitter may disrupt distance field queries
Fixed! UE-89189 The stack views missing module Fix issue button (replace with module) only shows modules in the library
Fixed! UE-88666 Allow selecting multiple platforms to include/exclude in/from scalability overrides without closing the menu
Fixed! UE-88578 Remove/Deprecate fast path from Niagara
Fixed! UE-88605 Force deleting a module script will cause that stack to be corrupted
Fixed! UE-88365 Textures that are rendered within a blueprint and fed into a niagara emitter are deleted unless they’re also used in a material
Fixed! UE-87975 Parameters that have their defaults bound to a dynamic input do not appear to continually update
Fixed! UE-90642 Crash when adding a scratch pad script.
Fixed! UE-89730 Unable to search for an unloaded Module Script in an Emitter or System
Fixed! UE-77367 Flickering on ribbons
Fixed! UE-74860 Polish tooltips for at a glance readability
Fixed! UE-77837 System level dependencies not accounted for at the emitter level
Fixed! UE-87098 Niagara Stack: If and Emitter is named “Particles” a system error will occur.
Fixed! UE-89962 Crash on shutdown (FNiagaraEmitterViewModel::Cleanup())
Fixed! UE-89881 Failed to compile global shader FNiagaraDrawIndirectArgsGenCS cooking FaceARSample IOS
Fixed! UE-90445 Niagara doesn’t tell users that real time is disabled which effectively makes it seem like effects are broken
Fixed! UE-90643 Enabling Anisotropic BRDF causes crash upon Editor restart
Fixed! UE-90243 Fix mips assert on streaming skeletal meshes
Fixed! UE-89967 Ensure during Vulkan Engine Test - Unknown callstack
Fixed! UE-89859 Packaging for Metal 2.1 fails with LLVM ERROR: Cannot link symbol ‘air.min.u.i32’
Fixed! UE-89246 Handled Ensure: DepthStencilRenderTarget.DepthStencilTarget->GetNumSamples() == NumSamples Occurs When Enabling Forward Shading
Fixed! UE-89650 Adding a shot to shot track triggers an Ensure
Fixed! UE-85947 Ensure when opening TM-ShaderModels with Vulkan
Fixed! UE-90280 Simplify and Remesh Tools do not save and restore properties
Fixed! UE-89226 Show Grid cannot be disabled in the Static Mesh Editor
Fixed! UE-88330 Experimental Mesh Paint’s Brush Size scales inconsistently compared to Geometry Sculpting
Fixed! UE-88139 Reordering instanced components in the Actor Details tab invalidates the relocated instance such that it can no longer be registered into the current world.
Fixed! UE-87807 Actors Mode panel appears blank while in VR Mode
Fixed! UE-89826 FCachedReadPlatformFile and FCachedFileHandle doesn’t properly work on Mac when a file is open in read/write/append and makes UnrealRecoverySvc crash
Fixed! UE-89609 Place Actor’ Option Does Not Exist Until An Object From The Content Browser Is placed First
Fixed! UE-90516 Cook fails when cooking content for windows with the LiDAR Point Cloud Support plugin enabled.
Fixed! UE-59618 Highlighted section in the Output Log is not visible
Fixed! UE-87471 LogTemp warnings fire each time the user swaps between experimental Mesh Paint Mode Selection and Paint modes
Fixed! UE-90562 Crash when storing window size and position while exiting PIE
Fixed! UE-89963 Windows Editor Project Settings Does Not Contain Linux Section Under Platforms
Fixed! UE-78722 Potential Memory Leak with Disaster Recovery Plugin
Fixed! UE-81196 Datasmith Import options are not saved on reimport
Fixed! UE-90416 Dataprep - Timeline yellow dot stays lit even when nothing is in the graph
Fixed! UE-90400 in Dataprep editor, pressing “X” in the commit warning, will commit the import anyway
Fixed! UE-90365 Datasmith python API construct_datasmith_scene_from_file returns an empty scene
Fixed! UE-90345 Dataprep - sanitized Level name not refreshed
Fixed! UE-89966 Broken hierarchy of datasmith imported through dataprep after reimporting
Fixed! UE-90570 DataPrep - Recipe Graph pane not in the default layout
Fixed! UE-90508 dataprep - Crash overwriting a level
Fixed! UE-85637 Crash in Editor After committing dataprep assets following import and execute
Fixed! UE-89117 CAD files are not recognized when trying to import with Datasmith plugins enabled
Fixed! UE-90514 MDL Importer does not list .MDL format from the Content Browser
Fixed! UE-85388 MDL imports empty duplicate folders at the Content folder’s root level
Fixed! UE-90316 Revit Structural Steel Connections are not exported with Datasmith
Fixed! UE-89970 VRED import crashes editor
Fixed! UE-50033 [CrashReport] USpeedTreeImportFactory::FactoryCreateBinary()
Fixed! UE-90130 USD Stage - Unhidden Prim loses its animation
Fixed! UE-90238 LiDAR Point Cloud: Assets can be incorrectly culled when rotated
Fixed! UE-90239 LiDAR Point Cloud: Lack of access to points’ size is preventing users from using some custom VFX
Fixed! UE-90237 LiDAR Point Cloud: Missing C++ version of the ACSII import
Fixed! UE-90240 LiDAR Point Cloud: Ray-based operations on a single point are missing
Fixed! UE-89964 Add to fbx importer an option to force “reset to fbx” behavior when doing automation reimport
Fixed! UE-88251 .USD filetypes not available on export
Fixed! UE-89584 USD Stage - animation length in track is not accurate
Fixed! UE-89765 Import Textures boolean is still editable in FBX Import Options with material creation import methods on Linux
Fixed! UE-89051 USD Stage is not working in PIE
Fixed! UE-90493 Unexpected geometry changes to landscape when in “Player Collision” view mode
Fixed! UE-90550 Landscape Tool crashes on Layer Import
Fixed! UE-90563 Text on BP components can lose its translations when they are instanced into a level
Fixed! UE-90204 Fixed-size font for “Stats” pane in Material Editor by default
Fixed! UE-89792 Need UI to disconnect material layers from parent
Fixed! UE-90436 Cannot rotate viewport camera while using Create Polygon tool
Fixed! UE-90269 [CrashReport] UE4Editor-MeshPaintingToolset!UVertexAdapterClickTool::IsMeshAdapterSupported(TSharedPtr<IMeshPaintComponentAdapter,0>) [MeshSelect.cpp:148]
Fixed! UE-90171 Crash when generating proxylods on some datasets
Fixed! UE-88662 Cannot draw closed path in PolyPath Tool
Fixed! UE-85652 Crash when importing large FBX with Morph Targets and Disaster Recovery enabled
Fixed! UE-90423 MoviePipeline: Playback Bounds don’t work correctly on sequences with only a camera cut track.
Fixed! UE-90418 MoviePipeline: Output setting in Shot Config doesn’t import from Preset
Fixed! UE-90404 Sequencer: Control Rig: Blending sections doesn’t work with Control Rig Sections.
Fixed! UE-90372 Adding a template sequence track can sometimes result in the editor freezing
Fixed! UE-90367 MoviePipeline: Shots after the first one sometimes don’t evaluate
Fixed! UE-90363 MoviePipeline: Some High Res tile counts cause crash
Fixed! UE-90357 MoviePipeline: A shutter angle of zero causes a crash
Fixed! UE-90210 Sequencer: Copy/Paste Keys should overwrite existing keys or have option
Fixed! UE-90209 Sequencer: Next/Prev Key loops to start/end when at last/first key
Fixed! UE-90208 Sequencer: Curve Editor: Would be good to have a way to save level sequence from Curve Editor/Hot Key
Fixed! UE-90207 Sequencer: Curve Editor: Change hot keys for Tools from ‘W’ and ‘E’ to something else.
Fixed! UE-89581 Lock to viewport button is missing when going into a nested sequence with a spawnable blueprint
Fixed! UE-89877 Crash adding template sequence to itself
Fixed! UE-79065 Ability to specify window size in sequencer command line renders
Fixed! UE-87173 Ensure playing camera shake with Single Instance enabled
Fixed! UE-87532 Adjusting Start Values for Play, work and view area in Sequencer does not work as expected
Fixed! UE-90677 MoviePipeline: Export step doesn’t do anything
Fixed! UE-90658 MoviePipeline: Screen Percentage options don’t work.
Fixed! UE-90584 Crash when adding two of the same actors from the Modes Panel in Sequencer
Fixed! UE-90656 Adding a camera cut track through sequencer scripting does not set the movie scene’s camera cut track
Fixed! UE-89945 Enabling Audio Capture Timecode Provider, (LTC audio) crashes Editor
Fixed! UE-85110 VR Scouting - Can not hold grip on Camera for re-location
Fixed! UE-90380 Crash loading a sub level
Fixed! UE-89446 Remove Leap Motion plugin from engine
Fixed! UE-89321 SteamVR turns off vsync globally
Fixed! UE-89656 SteamVR icon displayed prominently in the Unreal Editor toolbar by default if SteamVR is installed
Fixed! UE-90640 Azure Spatial Anchors: watcher not working
Fixed! UE-84326 Deploying a C++ project with Morpheus enabled causes a Crash on Launch ‘sceVideoOutConfigureOutputMode failed: 0x80290016’
Fixed! UE-86191 “Scene Capture Component 2D” Causes Big Performance Dip In VR
Fixed! UE-86077 Packaging plugins for HoloLens fails
Fixed! UE-85716 HoloLens crashes on EngineTest launch
Fixed! UE-87447 OpenXRInput providing invalid suggested bindings for go_controller and daydream_controller
Fixed! UE-87311 Planar Reflections Cause Big Performance Hit In Packaged VR Projects
Fixed! UE-86577 XR: Mobile VR crashes with Assertion Failed: Enclosing block should never be called
Fixed! UE-86576 XR: Oculus Go fails to launch packaged project with app stopped working popup

Fixed in Preview 4
Fixed! UE-90733 Editor summary event may not be sent as expected because CrashReportClient may not consume the pipe data
Fixed! UE-90664 Editor summary analytic event reports incorrect idle time if the crash occurs before the first tick
Fixed! UE-90719 FPlatformMisc::RequestExit() can corrupt the EditorSessionSummaryWriter
Fixed! UE-87753 Opening the Trace Data Filtering panel causes an extreme drop in editor responsiveness
Fixed! UE-90503 Curve Editor - Retime Tool Anchors get lost when moved beyond timeline range
Fixed! UE-90878 Anim timeline flickers left-to-right when panning view on Notify track
Fixed! UE-67705 Single animations can take up to 8 hours to compress
Fixed! UE-88651 Crash deleting poses in pose asset
Fixed! UE-90246 Crash closing the editor when compressing animations
Fixed! UE-90548 Editor crash when choosing Additive Control Rig in Animation Blueprint | Casts.cpp at Line 10
Fixed! UE-89115 GetPlayerController accessed none in the Sanctuary_Audio blueprint when playing ShooterGame
Fixed! UE-89055 Stop Lowest Priority is no longer stopping the correct sound waves
Fixed! UE-90718 Editor Crash in Audio::FMixerSourceManager::BuildSourceEffectChain
Fixed! UE-90539 GitHub 6778 : Move FAudioCommandFence’s WaitTimeMs to ConsoleVariable
Fixed! UE-90347 Fix-up Filters for Audio Types (Remove Sub-Types from Filters)
Fixed! UE-90875 VirtualStudio Sample LogAudioMixer Warning: Audio device removed
Fixed! UE-85715 Audio: Scaling Priority via Attenuation is not fully supported
Fixed! UE-82202 Audio: Modulation: Curve Editor: Modulation Curves are changing order when Output Settings are modified
Fixed! UE-88731 Audio: Soundfield Submix: Incompatible soundfields remain linked if Encoding Format changes after linking
Fixed! UE-90673 One off crash dragging an asset into the level viewport - Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x108acfc8
Fixed! UE-90427 If UE Root Directory is A Junction Errors Are Encountered During Startup
Fixed! UE-90381 Staging hang when an asset size is larger than the max chunk size
Fixed! UE-90266 UE4Editor-CoreUObject!FPackageName::FilenameToLongPackageName(FString const &) [PackageName.cpp:453]
Fixed! UE-90839 Unable to compile UE4 with Visual Studio 2019 version 16.5.0
Fixed! UE-89255 TraceLog crash in QAGame
Fixed! UE-90699 Encountering an ensure followed by a crash produces incorrect callstack
Fixed! UE-90154 Debug Crashing in a Debug Attached Cooked game produces crash artifacts outside the expected locations

UE-90700 Client crash in UObject::DestroyNonNativeProperties

Fixed! UE-90698 7MB regression in Function memory
Fixed! UE-90338 Mac packaged builds as UE4Game.app rather than .app
Fixed! UE-82581 Debug ThreadEnsure callstack not populating in Output Log
Fixed! UE-90439 Collab Viewer - Clicking in the environment while interaction menu is open repeats last triggered action
Fixed! UE-90402 Collab Viewer - Laser pointer is not appearing properly in Walk mode
Fixed! UE-90360 Collaborative viewer needs to be available only on Windows
Fixed! UE-90499 Editor crash when selecting a inherited child actor that got deleted in converted actor
Fixed! UE-90496 World position is saved as relative position when converting actor, causing teleportation upon conversion
Fixed! UE-90497 Converted Actor Component Tree is different in BP Editor and Level
Fixed! UE-90922 Soft Object References set directly on parameters are not correctly referenced
Fixed! UE-90948 ability tasks that change the movement type did not reset it when they finished
Fixed! UE-86045 Initial overlaps aren’t populated by BeginPlay
Fixed! UE-90825 Renaming a variable in parent blueprint results in value in child blueprint being reset to default
Fixed! UE-90900 Subcomponent doesn’t appear in IWCE if component was added from Content Browser

UE-52921 [CrashReport] UE4Editor_Engine!USceneComponent::DestroyComponent() [scenecomponent.cpp:847]

Fixed! UE-90474 Adding multiple Child Actors through the Construction Script and then changing the Child Actor’s class results in mismatched ID names
Fixed! UE-90393 Crash attempting to PIE after editing physics asset
Fixed! UE-90359 Crash attempting to PIE in ChaosDestructionDemo
Fixed! UE-90810 Update XDK to QFE13
Fixed! UE-90920 UDIM not working on Linux
Fixed! UE-90526 UFE Custom Launch Profile Fails to Create .app on Mac When Deployed
Fixed! UE-90578 Movable lights and movable static meshes do not render shadows in TM-RectLights
Fixed! UE-90697 Compile Ocean Android failed for ANDROID_BUILD_TOOLS_GRADLE_VERSION
Fixed! UE-90189 Niagara GPU particles flicker in TM-ShaderModels on android
Fixed! UE-90176 [TM-ShaderModels] Crash on open: Assertion failed: Mapping file OpenGLVertexBuffer.cpp
Fixed! UE-90910 Render static’ flag crashes editor in OpenGL ES3.1 shader complexity view mode
Fixed! UE-85881 Ambient cubemap from dynamic skylight is missing in ES3.1 when high quality reflections are enabled in the material
Fixed! UE-90180 TM-ShaderModels Decals do not appear on some Android devices
Fixed! UE-90932 VisualizeMotionBlur pass not properly handling output override.
Fixed! UE-90876 VirtualStudio Sample LogD3D11RHI Warning: Temp texture streaming buffer not large enough
Fixed! UE-90850 Handled Ensure when running packaged Match3
Fixed! UE-90726 Exposure differences are too prominent when r.UsePreExposure=False
Fixed! UE-90442 SSGI_DirectionalLight_Movable triggers an assert in -d3ddebug mode
Fixed! UE-90097 Deferred decal does not display when running GTAO.
Fixed! UE-89341 Modules fail to compile if a function uses the parameter map
Fixed! UE-88547 Crash copy/pasting a Module with a Scratchpad Dynamic Input Script into an emitter in another project
Fixed! UE-90830 Need an indicator for the Niagara Emitter Sim Target
Fixed! UE-90744 Crash mousing over parameter on a Map Get that was pasted into a Scratch Pad module script
Fixed! UE-90694 Functions can’t use exec pins
Fixed! UE-90667 Entering a renamed module’s original name does not rename/reset the display name of the module
Fixed! UE-90512 Niagara GPU shader compiles often fail first engine tests
Fixed! UE-90384 Selecting to include/exclude a platform via +/- buttons does not update the button that lets the user expand a list of the platform’s variations properly
Fixed! UE-90327 Copy-pasting renamed Niagara modules are created with Source Name instead
Fixed! UE-90091 Scratch pad modules do not handle gpu DI calls
Fixed! UE-87290 Skel / Static Mesh DI Preview vs Default Mesh
Fixed! UE-90882 Can’t add parameters to a scratch pad graph.
Fixed! UE-72141 Actors with Niagara components don’t wait for the system to finish before being auto destroyed
Fixed! UE-90187 Extreme Flickering Occurring In Entire Level When Facing Niagara Systems on Android
Fixed! UE-62320 Niagara parameters that are set via construction script do not update when starting PIE/Simulate
Fixed! UE-88914 Using Collision in Niagara without an Update Age module will prevent any particles from spawning
Fixed! UE-90463 Fatal Crash When Enabling Bidirectional Reflectance Distribution Function (BRDF)
Fixed! UE-89996 4.25 crashes regularly (Assertion failed: SizeX <= GetMax2DTextureDimension() )
Fixed! UE-88238 ShaderCompileWorker crashes when packaging BP projects for Magic Leap on Mac
Fixed! UE-77639 Crash enabling Landscape Layers in editor with -Vulkan
Fixed! UE-87734 CLONE - Reset Camera toolbar button non-functional in Static Mesh Editor
Fixed! UE-90812 “Hide Unrelated” button duplicated in animation blueprint editor
Fixed! UE-81196 Datasmith Import options are not saved on reimport
Fixed! UE-89427 Binary build - NotForLicensees features unavailable
Fixed! UE-89173 Collab Viewer template project railings have no collisions
Fixed! UE-90788 Dataprep - Crash editing a dataprep asset
Fixed! UE-90746 Variant Manager - Auto-Record is broken
Fixed! UE-90736 Datasmith Importer - Shader colors are not properly imported
Fixed! UE-90666 Crash when performing Jacketing test with delete parameter
Fixed! UE-90665 Multiple file is not static, can not attach warnings when importing file through dataprep asset
Fixed! UE-90647 Warning when opening dataprep asset, unable to find Slate Widget Style 'DataprepAction.TitleTextBlockStyle
Fixed! UE-90506 Crash when assigning material to datasmith asset
Fixed! UE-90492 Importing Datasmith CAD file Persistence IGS results in extra geometry static mesh actors
Fixed! UE-90480 Importing Datasmith CAD file results in several LogDatasmithDispatcher Handler Errors
Fixed! UE-90149 dataprep - Preview state are kept in other pane even when filter is deleted
Fixed! UE-90958 Crash when opening dataprep recipe
Fixed! UE-90916 visual dataprep crashes on undo on action creation
Fixed! UE-86868 Dataprep imported lights have their assigned IES Textures wiped after re-opening the level
Fixed! UE-82875 CollabViewer - Oculus - Laser Start point is visible on the oculus controller.
Fixed! UE-90937 Red Lines in PIE viewport of Collaborative Viewer when tilting the camera up and down
Fixed! UE-90598 Errors importing datasmith attributes generated from 3ds Max
Fixed! UE-90772 PLMXML: Error at import: ImportContext.InstanceGraphRootRefs.Find(FirstInstanceRef) != INDEX_NONE
Fixed! UE-90820 Cinema 4D - Animations with linear interpolation are incorrectly imported
Fixed! UE-90807 more than one mesh get the same material even though material was only applied to one mesh
Fixed! UE-90662 USD Stage - fails to save a level with USDStageActor
Fixed! UE-90659 USD Stage - Point instances are not cleared when opening another usd file
Fixed! UE-90645 Warning when creating new USD asset from reference
Fixed! UE-90638 Importing USD asset from USD Stage crashes the editor
Fixed! UE-90894 Landscape component ForcedLOD setting has no effect
Fixed! UE-90880 Connecting a Parameter to the Material Output Node does not add the Parameter to the Parameter Defaults Panel
Fixed! UE-90322 Merge actor produces wrong texture on imported c4d asset.
Fixed! UE-90494 Crash occurs moving PolyCut tool across mesh - Assertion failed: IsTriangle(TriangleID) [File:…DynamicMesh3.h] [Line: 502]
Fixed! UE-90455 Crash undoing after switching modes from Mesh Paint to Place mode
Fixed! UE-91007 [CrashReport] UE4Editor-ModelingComponents!UPolygonSelectionMechanic::BeginChange() [PolygonSelectionMechanic.cpp:269]
Fixed! UE-90972 Select- Separate results in no material assignment
Fixed! UE-90946 Internal Python objects visible from Construct Object BP node
Fixed! UE-78553 Audio tracks with multiple subtracks will paste parent track when a subtrack is copied and pasted in Sequencer
Fixed! UE-89514 Curve Editor: Changing Pre or Post-Extrap modifies all curves
Fixed! UE-90734 MoviePipeline: Render (Remote) only renders one job and not full queue
Fixed! UE-90723 Cinematic Viewport reports inaccurate values
Fixed! UE-90521 MoviePipeline: Presets can’t be shipped with project as QAGame is embedded in path
Fixed! UE-90917 Crash rendering sequence with a Temporal Sample count > 1
Fixed! UE-84852 Event not saved correctly when duplicating Level Sequence
Fixed! UE-89454 Depth of fields behavior when Focus Method is None
Fixed! UE-91019 MoviePipeline: Lack of preview is confusing.
Fixed! UE-90689 render manager outputs 16 bits exr but says they are 32 bits
Fixed! UE-90653 Redoing an edit to a widget blueprint component’s value fails if the value is scrubbed
Fixed! UE-90786 Warp Utils plugin crashes on Editor restart
Fixed! UE-90685 Color Correction Volumes have lost internal connections and references.
Fixed! UE-90857 Cant delete annotation on collab Viewer
Fixed! UE-90809 AzureSpatialAnchors remoting feature fixes
Fixed! UE-90728 AzureSpatialAnchors -cannot set AppProperties on cloud anchor
Fixed! UE-90678 Create Collab Viewer For Hololens2 Device
Fixed! UE-90998 Hollolens Viewer Template: problem when moving actors
Fixed! UE-90949 Invalid image layout when using VR preview
Fixed! UE-90874 Assert on Oculus Quest running deployed project
Fixed! UE-90862 HoloLens packaging fails in GetTextureBuildSettings()
Fixed! UE-90410 GitHub 6769 : Move HoloLens input sim injection for controller tracking status to t?
Fixed! UE-90411 GitHub 6770 : Better activation criteria for input simulation
Fixed! UE-90412 GitHub 6771 : Support for the hand pointer pose in input simulation
Fixed! UE-90166 Failure to open projects on android due to multiple libraries not loading

Fixed in Preview 5
Fixed! UE-91160 Editor Analytics can crash if the session is created late
Fixed! UE-91318 Events were sent from Crash Reporter after Editor Usage Data is disabled.
Fixed! UE-91009 [CrashReport] UE4Editor-Engine!FAnimInstanceProxy::InitializeRootNode(bool) [AnimInstanceProxy.cpp:201]
Fixed! UE-90989 Anim timeline does not pan view on Notify track
Fixed! UE-90334 Animation Performance Issues Caused by FProperty Changes
Fixed! UE-89228 Changing skeleton bone’s transforms does not update or behave as expected
Fixed! UE-82678 Crash on applying animation modifier for some assets
Fixed! UE-67609 [CrashReport] UE4Editor_Engine!CropRawTrack() [animsequence.cpp:1798]
Fixed! UE-91227 Crash when closing the animation timeline document tab while editing curve
Fixed! UE-84544 4.24 Spatial Audio Temple - Detected orphaned looping sound
Fixed! UE-90913 Mix Modulation assets are white squares
Fixed! UE-91280 Crash in Dynamics Processor
Fixed! UE-88249 Audio: Timesynth: Calling Stop twice on a timesynth component can lead to a lock
Fixed! UE-90968 Performance regression with IntelTBB
Fixed! UE-91040 Stompmalloc crash opening another project in editor using File > Recent Projects
Fixed! UE-87834 NullRHI command line parameter doesn’t work when compiled with VS2019
Fixed! UE-91015 FInsightManager prevents Editor from exiting on restart
Fixed! UE-91177 Editor Unreal Insights creates a malformed EditorLayout.ini, StartPage defined and duplicated Area entries
Fixed! UE-91087 Network Insights Exclusive Bit size is not computed correctly
Fixed! UE-91067 Select All without a packet selected does not select all packets in Network Insights
Fixed! UE-91150 int64 UProperty with ExposeOnSpawn meta tag won’t compile.
Fixed! UE-90775 Launcher C++ template project is prompted to install a C++ Desktop development workload after previously installing Visual Studio
Fixed! UE-91251 UGS Script on Mac fails to compile - Object reference not set to an instance of an object
Fixed! UE-89755 Fails to run packaged game when enabling Editor only plugin
Fixed! UE-89756 ShooterGame fail to package | System.IO.DirectoryNotFoundException: Could not find a part of the path ‘…\ShooterGame\Binaries\DotNET\AutomationScripts’.
Fixed! UE-90745 Manual recompile is needed after creating C++ Class in Blueprint Project
Fixed! UE-90841 Preview 3 GitHub build fails to generate project files on home PC
Fixed! UE-89722 Fail to launch project with Niagara, NiagaraExtras and Chaos Niagara plugin | Unable to load plugin ‘NiagaraExtras’
Fixed! UE-90936 Project Launcher’s Default Profiles do not build C++ projects in Launcher Builds, causing extra required setup
Fixed! UE-90771 M_Volumetric_Sky_Prototype Material has compile errors
Fixed! UE-91320 Add Product Configurator Template to 4.25
Fixed! UE-64808 Event graph does not focus when adding Event from details panel
Fixed! UE-86045 Initial overlaps aren’t populated by BeginPlay
Fixed! UE-90523 Converting udatasmith asset to blueprint class crashes - Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 674] Array index out of bounds: 0 from an array of size 0
Fixed! UE-91136 Converting attached actor to blueprint detaches it from its parent
Fixed! UE-90981 Crash when recompiling with intermediate build graph tab open
Fixed! UE-91214 BP breakpoints cause multiple tabs to be open for the same function
Fixed! UE-90090 Rotating Movement Component doesn’t work in a Standalone game if added to an instance in the level
Fixed! UE-91097 NetTrace requires both -NetTrace and -Trace to be enabled
Fixed! UE-87915 WebBrowser crashes when typing any character at text input field in Mac OS X catalina (10.15.3)
Fixed! UE-90925 Crash opening QA-Sequencer
Fixed! UE-91200 Importing UDIM fails check on Linux
Fixed! UE-91054 Python errors when opening QAGame
Fixed! UE-82076 Animated Noise Emissive does not animate as expected
Fixed! UE-86001 Android: Mali G72 Device Crashes Opening TM-ShaderModels for Fatal Error in vkCreateComputePipelines
Fixed! UE-89864 Landscape has overlapping and missing faces on Android
Fixed! UE-64085 Use new DXGI to enumerate adapters by gpu preference
Fixed! UE-90725 Crash when assigning a Source Texture to a Volume Texture
Fixed! UE-90657 [CrashReport] UE4Editor-MetalRHI!FMetalRHIBuffer::AllocLinearTexture(EPixelFormat, FMetalLinearTextureDescriptor const&) [MetalVertexBuffer.cpp:338]
Fixed! UE-90612 GitHub 6784 : Vulkan LLM improvements: track spare and render target memory
Fixed! UE-91011 [CrashReport] UE4Editor-Engine!UMaterial::GetScalarParameterValue(FHashedMaterialParameterInfo const &,float &,bool) [Material.cpp:2083]
Fixed! UE-91076 Crash: UE4Editor-RenderCore.dll!ValidateShaderParameters(const TShaderRefBase<FShader,FShaderMapPointerTable> & Shader, const FShaderParametersMetadata * ParametersMetadata, const void * Parameters)
Fixed! UE-91029 Ensure when placing ‘Groom’ asset into scene in DX12
Fixed! UE-89990 Multiple ShadowCulling automation tests fail with screenshot differences on DX12
Fixed! UE-91258 Crash when compiling material instance after swapping texture in the parent material
Fixed! UE-91058 Cascade Particles Are Rendering Offset From Their Original Location On Android
Fixed! UE-90934 Lighting follows player movement in Blueprint Office sample
Fixed! UE-90987 [CrashReport] static void AddHairStrandMeshProjectionPass(class FRDGBuilder & const, class FGlobalShaderMap *, const bool, const int, const struct FHairStrandsProjectionMeshData::Section & …
Fixed! UE-91248 [CrashReport] UE4Editor-HairStrandsCore!UGroomComponent::PreEditChange(FProperty *) [GroomComponent.cpp:1576]
Fixed! UE-71461 Niagara Systems stop rendering when a Static Mesh parameter is added to Particle Update
Fixed! UE-88208 Remove vertex colors from static mesh crashes the editor
Fixed! UE-90844 Niagra Plugin causing QAGame project compile failure
Fixed! UE-91014 Editor crashed when Emitter State is added to Niagara Emitter and issued an Undo command
Fixed! UE-90926 Niagara Crashing in Fury during compile of system
Fixed! UE-91277 Fix inconsistency with error and warning display.
Fixed! UE-91111 Undoing/Redoing renaming a Module to its source name will show that the source name is also the display name
Fixed! UE-91070 Users can’t create collision trace channel module inputs
Fixed! UE-91063 Editor crashes when clicking Enable Simulation Stages on and off with error: “Can not refresh children on an entry after it has been finalized”
Fixed! UE-91059 Crash fixing issues in Content Example’s TextureSampling_System
Fixed! UE-89899 MutiEventRibbons test fails due to screenshot mismatch
Fixed! UE-88588 Fixed bounds workflow improvements
Fixed! UE-88587 Try to clean up collision module to not need manual static switch for GPU/CPU
Fixed! UE-89516 Initializing a parameter of type “Object” in the stack leads to a crash
Fixed! UE-89361 The particle simulation stage module usage bitmask flag should be enabled by default
Fixed! UE-89105 Dynamic input graphs incorrectly complain about parameter map param references
Fixed! UE-91148 Crash creating a new parameter on Map Set by drag/dropping a pin from a Map Get that was copy/pasted from a different graph
Fixed! UE-91207 Entering a name for User Parameters on creation in a System does not stick
Fixed! UE-90990 Buttons in Niagara Emitter creation menu appear greyed out while still being usable
Fixed! UE-91281 Inherit velocity does not work on Mesh Triangle mode
Fixed! UE-91141 Crash when deleting all the Particle Spawn and Update modules from an emitter
Fixed! UE-91286 Determinism only works on CPU version of some mesh sampling operations
Fixed! UE-91294 Localspace output needs to be correctly handled on local position in skeletal mesh location
Fixed! UE-85309 [CrashReport] UE4Editor-Engine!FStaticMeshSceneProxy::GetDynamicRayTracingInstances(FRayTracingMaterialGatheringContext &,TArray<FRayTracingInstance,TSizedDefaultAllocator<32> > &) [StaticMeshRender.cpp:1549]
Fixed! UE-91271 [CrashReport] UE4Editor-Engine!FInstancedStaticMeshSceneProxy::GetDynamicRayTracingInstances(FRayTracingMaterialGatheringContext &,TArray<FRayTracingInstance,TSizedDefaultAllocator<32> > &) [InstancedStaticMesh.cpp:1200]
Fixed! UE-85303 [CrashReport] UE4Editor-D3D12RHI!FD3D12DynamicRHI::RHICreateUniformBuffer(void const *,FRHIUniformBufferLayout const &,EUniformBufferUsage,EUniformBufferValidation) [D3D12UniformBuffer.cpp:106]
Fixed! UE-85843 [CrashReport] UE4Editor-D3D12RHI!D3D12RHI::VerifyD3D12Result(long,char const *,char const *,unsigned int,ID3D12Device *) [D3D12Util.cpp:263]
Fixed! UE-85765 Unreal Engine crash running DX12 on AMD with assertion referencing WindowsD3D12PipelineState.cpp
Fixed! UE-86062 DX12 crash when fullscreen app looses focus.
Fixed! UE-87288 ShaderDrawDebug causes GPU restart on AMD
Fixed! UE-81499 Support Vulkan on UseSingleLayerWaterIndirectDraw
Fixed! UE-81243 Enable Virtual Texturing in MetalRHI
Fixed! UE-90756 Crash when using Share Material Shader Code and Native Metal Libs with r.Shaders.Optimize=0
Fixed! UE-90870 KiteDemo packages crash on Mac with Assert: Height <= GMaxTextureDimensions
Fixed! UE-90852 4.25 Editor from EGL requires shaders to be compiled when opened
Fixed! UE-90485 Crash running Niagara+Rendering Engine Test with Vulkan RHI
Fixed! UE-91107 UE4 Editor Build Failure: error C4668: ‘WINAPI_PARTITION_GAMES’ is not defined as a preprocessor macro, replacing with ‘0’ for ‘#if/#elif
Fixed! UE-89999 Crash Occurs When Infiltrator Demo Ends On Linux
Fixed! UE-89971 Multiple Error:Validation warnings during EngineTest with Vulkan
Fixed! UE-88248 ShaderCompileWorker terminates unexpectedly when launching to Android from Mac
Fixed! UE-82458 D3D12RHI keeps increasing uniform buffer memory with “stat RHI”
Fixed! UE-87881 [CrashReporter] UE4Editor-D3D12RHI!FD3D12DynamicRHI::LockBuffer(FRHICommandListImmediate *,FD3D12VertexBuffer *,unsigned int,unsigned int,EResourceLockMode) [D3D12Buffer.cpp:289]
Fixed! UE-91196 “Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:Runtime/Core/Public/Containers/Array.h] [Line: 674] Array index out of bounds: 0 from an array of size 0” Occurs When Opening QAGame With -opengl On Linux
Fixed! UE-89235 Overwriting Merged actors with Merge Materials and Opacity Mask enabled crashes the editor
Fixed! UE-87472 Entering experimental Mesh Paint Mode paint mode disables mouse viewport nagivation
Fixed! UE-87473 Autosave forces experimental Mesh Paint Mode back into Selection mode
Fixed! UE-90575 Crash when adding a duplicate LiDAR Point Cloud Asset to a level
Fixed! UE-91008 [CrashReport] SPlacementModeTools::OnKeyDown(FGeometry const&, FKeyEvent const&) [in UE4Editor-PlacementMode.dylib]
Fixed! UE-91240 [CrashReport] UE4Editor-MaterialEditor!FMaterialEditor::GeneratorRowsRefreshed() [MaterialEditor.cpp:1068]
Fixed! UE-91165 Editor crash selecting next texture from menu bar, Unhandled Exception: EXCEPTION_INT_DIVIDE_BY_ZERO
Fixed! UE-91052 Releasing any of the mouse buttons in PIE results in the camera moving to the bottom right
Fixed! UE-88330 Experimental Mesh Paint’s Brush Size scales inconsistently compared to Geometry Sculpting
Fixed! UE-88323 Selecting different experimental Mesh Paint tools on the ribbon breaks Undo without clearing Transaction Buffer
Fixed! UE-90288 UE Crashes with Unhandled Exception when closing UE via taskbar while VR mode is active
Fixed! UE-91166 Paint tool in textures tab of experimental Mesh Paint tool is not grayed out when the selected mesh has no valid textures
Fixed! UE-91199 Crash when painting on an unsaved texture
Fixed! UE-91325 Selecting Meshes in Mesh Paint Mode Is Laggy
Fixed! UE-90554 Ensure scrolling through the Content Browser while filtering for blueprint
Fixed! UE-82951 DataPrep - Create Proxy Mesh discrepancy with merge actor
Fixed! UE-91186 Editor for Linux fails to build with SDataprepGraphTrackNode.cpp Error:const bool bStillOutOfScope = bCursorLeftOnLeft && DragTrackPosition.X < SoftwareCursorPos.X
Fixed! UE-90429 Mesh Substitution Data Table type from Dataprep is still available (operation does not exist anymore)
Fixed! UE-90408 Crash on running Proxy Mesh generation in Dataprep
Fixed! UE-91201 Dataprep - importing folder creates folders for each assets
Fixed! UE-77248 Collaborative Viewer - Refresh button doesn’t appear if windows resize
Fixed! UE-91329 Crash adding an actor to a Variant Sets without Variant - Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 674] Array index out of bounds: 0 from an array of size 0
Fixed! UE-90892 STEP group names are incorrect after import.
Fixed! UE-91110 Landscape Grass renders offset from Landscapes
Fixed! UE-91164 Ensures referencing TickableEditorObject.h:81 and FBX import modules
Fixed! UE-91232 USD Stage - Crash opening a scene with large number of vertices - Fatal error: [File:Engine/Source/Runtime/Core/Private/GenericPlatform/GenericPlatformMemory.cpp] [Line: 186] Ran out of memory allocating 39422240073 bytes with alignment 0
Fixed! UE-91109 Multiple “LogLandscape: Warning: Shader FTrivialMaterialCHS unknown by landscape thumbnail material” when using Engine Content Landscape_Material
Fixed! UE-91080 Texture edit view doesn’t show virtual texture layers correctly
Fixed! UE-91276 crash on edit normals if mesh has duplicate triangles
Fixed! UE-91000 Multiuser nodes are not found in VPN
Fixed! UE-89128 Re-Opening Game After Trying to Add a Cooked Material to a Level Results in a Crash
Fixed! UE-90939 Spawnable empty actor loses components after editor restart
Fixed! UE-91252 Filter window does not open in Curve Asset Editor
Fixed! UE-91300 Crash When Opening a DataTable Based Off a Struct With a Timecode Variable
Fixed! UE-91262 Importing camera FBX into subsequence loses focal length
Fixed! UE-87717 Exporting Audio when window is not focused causes audio to cut out when played back
Fixed! UE-91153 Interacting with Editor Viewports over Remote Desktop snaps mouse cursor to upper-left corner of display
Fixed! UE-85110 VR Scouting - Can not hold grip on Camera for re-location
Fixed! UE-90740 VR Scouting and Multi-User cause NaN error and possible crash
Fixed! UE-90748 Flying doesn’t work in VR scouting (tested on Oculus only)
Fixed! UE-90781 DMX: Controllers have a default Universe Start of 0
Fixed! UE-91191 Fix clock offsets for livelink evaluation modes to have smooth latest
Fixed! UE-91130 Vcam - Virtual Joystick widget V2 is available in 4.25 while it’s scheduled for 4.26
Fixed! UE-89367 LiveLink data freezes when Timecode goes back in time.
Fixed! UE-91041 Play button greyed out if DisplayCluster initialization failed
Fixed! UE-91147 Entering VR Mode warns virtual production users about modes UI
Fixed! UE-90727 AzureSpatialAnchors for remoting does not work
Fixed! UE-90868 Packaging project fails with a UAT crash when OculusAvatar plugin is enabled
Fixed! UE-91217 WindowsMixedRealityHMD.cpp(35): fatal error C1083: Cannot open include file: ‘HoloLensModule.h’
Fixed! UE-91195 Hololens - input simulator active and crashes in vr preview
Fixed! UE-91170 GitHub 6804 : Fix bug in Windows Mixed Reality when using a SpatialStageFrameOfRefe?
Fixed! UE-88711 VR Mode Vive touch pad no longer scrolls smoothly
Fixed! UE-89646 UE4 Failed to compile default material /Engine/EngineMaterials/WorldGridMaterial.WorldGridMaterial! for a new VR Project on HoloLens
Fixed! UE-89150 Assertion fail: GDefaultMaterials[Domain] When Launching Onto Lumin
Fixed! UE-90310 Oculus Touch Menu Button Input Not Received When Set In Action Mapping
Fixed! UE-91210 Hololens - restore wmr/hololensar plugin dependency direction to previous

Fixed in Preview 6
Fixed! UE-91493 CrashReportClientEditor may send a report owned by another concurrent instance losing the exit code in the process
Fixed! UE-91332 Cannot close UE4Editor when certain animation editor tabs are open.
Fixed! UE-90371 Skeletal Meshes with negative scale on nodes in hierarchy do not import correctly in 4.25 or 4.26
Fixed! UE-91227 Crash when closing the animation timeline document tab while editing curve
Fixed! UE-91371 Fatal Error!’ crash in AudioQA.exe when packaged for AQ_Steaming
Fixed! UE-91061 Calling Finish Recording Output causes a crash in PIE
Fixed! UE-89106 Non-streaming audio files fail to seek

**Fixed!** UE-91578 [CrashReport] UE4Editor-Synthesis!Audio::FConvolutionReverb::DeinterleaveBuffer(TArray<TArray<float,TAlignedHeapAllocator<16> >,TSizedDefaultAllocator<32> > &,TArrayView<float const >,int) [ConvolutionReverb.cpp:358]

Fixed! UE-91349 SoftObjectPaths containing + parse incorrectly
Fixed! UE-90312 VSCode extension suggestion fails to find csharp extension (because it was renamed by Microsoft)
Fixed! UE-91457 SyncProject fails after syncing project files with “The Editor is not a valid target for [uproject]”
Fixed! UE-89664 GitHub 6730 : PVS-Studio: support of analysis modes
Fixed! UE-90605 Running PVS from installed build fails
Fixed! UE-91145 Assert Crash when Attempting to rename Vector variable with open split pins
Fixed! UE-91336 Assert When Applying Instance Changes to Blueprint
Fixed! UE-91360 Crash saving QA_MathExpressionTest blueprint in QAGame
Fixed! UE-90905 r.UseAllowTearing = 1 argument crashes the package launching with the command
Fixed! UE-89222 ShooterGame Play as Client fail to connect when Run Under One Process Disabled
Fixed! UE-88621 Crash [EXCEPTION_ACCESS_VIOLATION 0x00000000] on ShooterGame PIE with Play as Client and Run Under One Process Disabled
Fixed! UE-85284 Crash triggering demos in ChaosExamples_04_Niagara
Fixed! UE-91463 New internal cluster particles incorrectly setting P,Q
Fixed! UE-89161 Crash closing the editor with ChaosExamples_04_Niagara open
Fixed! UE-91516 Update transforms of particles who have a parent that is an internal cluster
Fixed! UE-91519 Linux ASan non-monolithic builds end up in bad state
Fixed! UE-90178 Flickering at the edges of the screen when turning the camera on some Android and iOS devices
Fixed! UE-90200 Unreal logo is displayed at a disproportionate scale on some android devices
Fixed! UE-91423 DepthFade could not work property with MSAA enabled on Adreno devices
Fixed! UE-91261 Runtime Virtual Textures crash on Mobile | OpenGLUAV.cpp [Line: 299]
Fixed! UE-90022 Android crash in UnrealMatch3 after a few seconds
Fixed! UE-90034 Textures Appear To Be Rendered Black When Playing Infiltrator Demo With -OpenGL
Fixed! UE-84572 Crash on Quit of Infiltrator Demo using X to Close when in Windowed Mode
Fixed! UE-88163 Material editor: texture property doesn’t support volume texture attributes
Fixed! UE-91197 Crash running Cooked EngineTest preceded by multiple “Missing shader resource for hash <‘hash’> in the shader library” errors
Fixed! UE-89948 Motion blur causes objects to appear to be choppy
Fixed! UE-91407 Errors occur when cooking a Volume Texture that was not created from a 2D Texture
Fixed! UE-91112 Crash when changing the Collision Preset in the Static Mesh Editor
Fixed! UE-86798 When using the mesh particle space to world space transform on static meshes the local to world transform matrix should be used
Fixed! UE-91569 [CrashReport] UE4Editor-Renderer!static void AddHairStrandUpdateMeshTrianglesPass(class FRDGBuilder & const, class FGlobalShaderMap [HairStrandsMeshProjection.cpp:550]
Fixed! UE-82004 Mesh Particle space transforms no longer function
Fixed! UE-77479 Event node with struct type fixup not functioning properly
Fixed! UE-87597 Parameter panel does not refresh after deleting user parameters
Fixed! UE-85791 Improve Invalid DataInterface handling
Fixed! UE-86767 Niagara Script Deprecation Recommendation asset selector accepts any Niagara Script and crashes
Fixed! UE-87716 Compiling a BP sets all Override Parameters of its instances to the values set in the BP class
Fixed! UE-87708 Removing a user parameter from a System does not remove the parameter from Niagara Actors or Niagara System Components
Fixed! UE-87770 Resetting a Niagara System Component instance’s override parameter sets the parameter to the value set in the system rather than the blueprint
Fixed! UE-86900 Regression: Skeletalmeshreproduction node do not show mesh when the mesh is not SK_Mannequin in 4.24
Fixed! UE-72141 Actors with Niagara components don’t wait for the system to finish before being auto destroyed
Fixed! UE-90587 Niagara System templates have Invalid Input errors when used
Fixed! UE-90218 Crash when compiling Blueprint class based off C++ actor with a Niagara component that has a user color curve
Fixed! UE-91515 Namespaces used as a Modifier are not appropriately colored
Fixed! UE-91508 VM Compile errors constantly try to recompile and spam the logs.
Fixed! UE-91491 Shader compile error in new Custom Expression
Fixed! UE-91461 Static Mesh DI IsValid function can return true and false regardless of input
Fixed! UE-91398 Changing the event name on a “write event payload” node crashes the editor
Fixed! UE-91032 Niagara Mesh Particle transformation from world to mesh local space issue
Fixed! UE-91270 “Array” parameters show up in Niagara scripts
Fixed! UE-89291 Sample Static Mesh module needs clearer instructions for artists
Fixed! UE-89032 Niagara Skel Mesh Triangle CPU Sampling Does Not Work
Fixed! UE-88813 User is not prompted to nor warned to fix CPU Access on Skeletal Meshes when necessary
Fixed! UE-88589 Niagara compute work better with profilegpu
Fixed! UE-89987 System Scalability Overrides do not work when an Effect Type has not been assigned
Fixed! UE-90054 Alter default EffectType handling
Fixed! UE-89955 Content Examples - Niagara Missing Texture Sampling Example
Fixed! UE-89693 Niagara events can be multiple frames latent
Fixed! UE-91119 An incorrect tool tip in the place module drop down states that modules exposed to the library are not
Fixed! UE-91518 Adding/removing parameters does not generate an undo transaction
Fixed! UE-90012 Crash running Engine Test Suite with Vulkan RHI
Fixed! UE-91522 Static Switch parameters are exposed in the Parameters panel in Systems/Emitters
Fixed! UE-91520 Selecting to edit a parameter’s modifier does not focus the text box for edit
Fixed! UE-91517 Ensure when adding a Niagara Parameter Collection parameter to a script
Fixed! UE-91330 Scratchpad module’s “open for edit” button calls the module a dynamic input
Fixed! UE-91530 Re-enable channel compression for shadow denoising
Fixed! UE-91316 Raytraced refractions broken 4.25 preview 4
Fixed! UE-82535 Crash when building lighting with a Basic shape in the level
Fixed! UE-87027 [CrashReporter] UE4Editor-D3D12RHI!FD3D12SegListAllocator::Allocate(unsigned int,unsigned int,TRefCountPtr<FD3D12SegHeap> &) [D3D12Allocation.h:793]
Fixed! UE-87767 [CrashReport] UE4Editor-D3D12RHI!CreatePipelineStateFromStream(ID3D12PipelineState * &,ID3D12Device2 *,D3D12_PIPELINE_STATE_STREAM_DESC const *,ID3D12PipelineLibrary1 *,wchar_t const *) [WindowsD3D12PipelineState.cpp:644]
Fixed! UE-72117 [CrashReport] UE4Editor-D3D12RHI!FD3D12Viewport::PresentChecked(int) [D3D12Viewport.cpp:492]
Fixed! UE-90255 [CrashReport] UE4Editor-D3D12RHI!FD3D12CommandListHandle::FD3D12CommandListData::Close() [D3D12CommandList.cpp:133]
Fixed! UE-91499 Crash in QAGame when scrubbing LOD Model Painting value and shifting to Selection Mode
Fixed! UE-91240 [CrashReport] UE4Editor-MaterialEditor!FMaterialEditor::GeneratorRowsRefreshed() [MaterialEditor.cpp:1068]
Fixed! UE-91442 Crash when modifying Name variables in a Data Table Struct with a Timecode variable
Fixed! UE-89182 Custom launch profile drop down menus in UFE are offset and unusable
Fixed! UE-89510 Painted LODs stay assigned to last LOD level selected in Mesh Paint panel
Fixed! UE-91388 4.25 doesn’t build in installed build from GITHUB because of CAD and MDL importers.
Fixed! UE-91445 Dataprep - Crash undoing action order shufling
Fixed! UE-91260 Dataprep - crash executing dataprep from the content browser
Fixed! UE-91399 Number of static mesh resulting from import is wrong with stitch sew
Fixed! UE-91374 Datasmith CAD Tessellation options is ignored when importing CAD file with Sew stitching technique
Fixed! UE-91383 Draw Polygon Tool cannot draw extruded polygons away from the origin
Fixed! UE-91384 Set end frame has incorrect bounds type
Fixed! UE-90765 Add measurement is still active when the context menu is brought up in Collab Viewer
Fixed! UE-91401 nDIsplay - Assets with empty version number exclusive to the nDisplay Template
Fixed! UE-91393 MediaIO - Missing Assets on Blank Virtual Production Template
Fixed! UE-91391 nDIsplay - Assets with empty version number on Blank Virtual Production, nDisplay and Virtual Production Templates
Fixed! UE-91273 VR Scouting - Second Controller Unusable with First Controller Submenu Open
Fixed! UE-91372 Timecodesynchronizer always fail with media and custom frame rate
Fixed! UE-88253 SingleEyeLetterbox showing two screens in TM-SpectatorScreen
Fixed! UE-91504 Hololens - speech recognition fix, meshobserver race condition fix
Fixed! UE-91380 Hololens - latency, remoting, hand tracking blueprint, and logging fixes
Fixed! UE-91376 GitHub 6815 : Remove duplicate TrackingToWorldTransform in HoloLens Hand Joints
Fixed! UE-91146 Packaged ETC2 projects with OpenGL ES3.1 for Oculus devices display a black screen on launch

Fixed in Preview 7
Fixed! UE-91592 Editor Analytics doesn’t always capture a project name when it could
Fixed! UE-91782 Re-enable support for parameters in Control Rig UI
Fixed! UE-89763 Ensure when rapidly undoing addition of Visual Debug in Control Rig | RigVMController.cpp at Line 3899
Fixed! UE-88732 Crash when closing a project that was running on one thread
Fixed! UE-89071 Packaged AudioQA crashes on open due to missing library: libembree.2.14.0.dylib
Fixed! UE-91889 Severe distortion in reverb submix effect
Fixed! UE-91216 Sounds with very short fade-in times may not play
Fixed! UE-90594 Crash launching the editor - FilenameToLongPackageName failed to convert…but the path contains illegal characters ‘.’
Fixed! UE-91803 Analytics hints that crash reporting and crash handling crashes themselves.
Fixed! UE-91890 Detect and report if CrashReportClientEditor is crashing
Fixed! UE-91551 Unreal Insights analysis occasionally stops
Fixed! UE-91685 The engine may crash on exit when performing final UObject cleanup if incremental GC was already in progress
Fixed! UE-91573 PackagingResults: Error: C++17 was disabled in PCH file but is currently enabled
Fixed! UE-91459 Packaging a project with a default editor-only plugin disabled triggers Build step
Fixed! UE-90936 Project Launcher’s Default Profiles do not build C++ projects in Launcher Builds, causing extra required setup
Fixed! UE-91702 Templates content needs updating due to Exposure changes
Fixed! UE-91548 Crash when spline component is used under directX12 with default material
Fixed! UE-84227 Sparse Class Data Type compile errors link the wrong code file
Fixed! UE-91567 [CrashReport] UE4Editor-CoreUObject!FFieldVariant::IsA(UClass const *) [Field.cpp:131]
Fixed! UE-91651 triple buffering causing jittering artifact
Fixed! UE-91632 Chaos crash causes unknown cook failure on linux
Fixed! UE-91616 dynamic state field doesn’t work with clustered particles
Fixed! UE-85006 Fractured GeometryCollection does not rest after colliding with ground
Fixed! UE-91506 Crash in USkeletalMesh::InitResources due to out of sync (null guid) render sections
Fixed! UE-91075 Crash opening a cloth skeletal mesh asset in editor
Fixed! UE-71869 Second player’s screen does not render in Split Screen on Android
Fixed! UE-90873 Support amrv7 And Support arm64 Options Are Grayed Out
Fixed! UE-91561 Fix a bug of missing DOF coc info in the TonemapperES2
Fixed! UE-91514 Android platform does not show up in Mac editor
Fixed! UE-91820 Change the -shared flag to clang level instead of linker
Fixed! UE-91779 AndroidManifest.xml is in use when attempting to build a universal apk and app bundle
Fixed! UE-91763 Black screen after launchscreen storyboard
Fixed! UE-90022 Android crash in UnrealMatch3 after a few seconds
Fixed! UE-89480 iOS and tvOS platforms unrecognized on Windows
Fixed! UE-88088 TVOS and iPhone 6 Tm-Shadermodels crashes with MetalCommands.cpp] [Line: 681] ‘R’ is not supported
Fixed! UE-80047 Implement Swappy including support for high refresh rate devices
Fixed! UE-91824 User-specified Launchscreen image does not get used for launch screen storyboard when packaging from PC
Fixed! UE-91761 Unable to select anything in Level Viewport | Input registered as Clicking on Brush
Fixed! UE-91658 QAGame Win32 Shipping crashes with “Missing global shader FWriteToSliceVS’s permutation 0” even when bTarget32Bit is true
Fixed! UE-88738 Bullet impact effect does not appear on the Sanctuary map in ShooterGame
Fixed! UE-89926 SkeletalMesh lod streaming is now asserting when used
Fixed! UE-88715 SSS is incorrect at low opacity values.
Fixed! UE-90950 Linear Color inputs do not update with scratch dynamic inputs
Fixed! UE-90387 Cap GPU particle counts on low end devices
Fixed! UE-91679 The editor crashes if “boundingboxcorner” is used in a gpu emitter and RTX is enabled
Fixed! UE-91639 Editor crashes when deleting an in-use Data Interface user parameter
Fixed! UE-91587 Crash changing a parameter’s Data Interface input to a Scratch Dynamic Input
Fixed! UE-91574 Context menu doesn’t open over Map Get/Map Set pins
Fixed! UE-91546 GitHub 6831 : Fix Niagara Scirpt (sic) Typos
Fixed! UE-91545 GitHub 6830 : Add Missing Newline to NDI_AudioOsc EOF
Fixed! UE-91525 New bound defaults read from garbage Uniform
Fixed! UE-91512 Enable/Disable the Modifier options based on the presence or lack of parameter modifiers
Fixed! UE-91364 MaterialNodeUsage examples jitter on mobile devices
Fixed! UE-91855 Long values don’t scroll when highlighted and the name can’t be read
Fixed! UE-91797 Crash when deleting an in-use user parameter is undone
Fixed! UE-91746 Skeletal mesh bone rotations seem to be in local space even when using the WS function on GPU sims
Fixed! UE-91743 SpawnOnly flag is confusing on Particle Simulation Stages
Fixed! UE-91736 the editor crashes when GPU particle emitters that read other gpu attributes are converted to CPU
Fixed! UE-82060 Android: Strange Ribbon Material Rendering for Niagara MaterialNodeUsage Autotest
Fixed! UE-88540 Crash adding a Set Specific Parameter > Particles.ID or Ribbon.ID module to an Emitter
Fixed! UE-79306 Niagara’s module search function can’t jump through the results array
Fixed! UE-79304 Niagara’s node graph search function doesn’t find function inputs
Fixed! UE-91842 Static Switches are missing from the module parameters panel
Fixed! UE-90557 Niagara Remove Pin Feature now deletes the variable completely from the Parameters Pane
Fixed! UE-91837 Set variables nodes headers show the old style variable text instead of the new namespace mods
Fixed! UE-91625 Adding a new typed variable via a Set node has issues.
Fixed! UE-91744 Volume textures, within cpu emitters, don’t produce warnings
Fixed! UE-91646 Crash in ray tracing when Show Static Meshes flag is disabled
Fixed! UE-91584 Deprecate RHIBegin/EndComputePass
Fixed! UE-91134 Flickering Decals on Mac in Mobile Preview
Fixed! UE-86278 [CrashReport] UE4Editor-D3D11RHI!VerifyD3D11ResizeViewportResult(long,char const *,char const *,unsigned int,unsigned int,unsigned int,unsigned char,ID3D11Device *) [D3D11Util.cpp:363]
Fixed! UE-79047 [CrashReport] UE4Editor-D3D11RHI!VerifyD3D11Result(long,char const *,char const *,unsigned int,ID3D11Device *) [D3D11Util.cpp:249]
Fixed! UE-91643 Improve Disk Space warning to cover more locations
Fixed! UE-91641 Linux: QAEnterprise fails to build with TestUSDSchema errors.
Fixed! UE-91730 PLMXML - invalid files make UE crash at import.
Fixed! UE-91636 Analytics - ProductName is left blank when importing Datasmith CAD file
Fixed! UE-91536 crash when importing IFC file
Fixed! UE-91591 TF_DIAGNOSTIC_WARNING_TYPE when creating new USD Asset from reference
Fixed! UE-87608 LiDAR Point Cloud - M_LidarPointCloud.uasset’ has been saved with empty engine version. The asset will be loaded but may be incompatible
Fixed! UE-91739 QAEnterprise fails to package Linux | Unable to instantiate module ‘UnrealEd’
Fixed! UE-90478 Crash when using Shift+6 keyboard shortcut with Mesh Modeling Mode plugin disabled
Fixed! UE-91911 Editor crash when switching from Modeling Mode to another Mode with a Tool Active
Fixed! UE-91597 Movie Pipeline crashes if Burn Ins are added but not enabled
Fixed! UE-91583 Bindings are lost when converting to possessable/spawnable
Fixed! UE-91501 Finish example editor widget in the Movie Render Pipeline Content folder
Fixed! UE-91847 [CrashReport] UE4Editor-Engine!UTextureRenderTarget::GameThread_GetRenderTargetResource() [TextureRenderTarget.cpp:46]
Fixed! UE-91745 Disable Auto Bind to PIE during movie renders
Fixed! UE-88541 Crash in GetKeysFromSelection
Fixed! UE-91575 [CrashReport] UE4Editor-Slate!FTabManager::InvokeTab(FTabId const &) [TabManager.cpp:1153]
Fixed! UE-91630 Collabviewer template context menu has extra space at bottom
Fixed! UE-91527 LiveLink Preset always default back to EngineTime Evaluation mode upon reload
Fixed! UE-91344 Animating the camera and character with LiveLink makes the character tremble
Fixed! UE-91715 LiveLink data recording corrupts memory
Fixed! UE-91205 Crash - VRScouting - nDisplay instance crashes when adding a Gaffer in Multi-User
Fixed! UE-91265 VR Scouting - Crash when saving a Level that contain Scouting Objects ( e.g Marker, Camera) UE4Editor_Engine!FUniformExpressionSet::FillUniformBuffer() …MaterialUniformExpressions.cpp:1147]
Fixed! UE-91191 Fix clock offsets for livelink evaluation modes to have smooth latest
Fixed! UE-91631 Collabviewer camera spawns inside the building on creation
Fixed! UE-90868 Packaging project fails with a UAT crash when OculusAvatar plugin is enabled
Fixed! UE-91648 Hololens suspend/resume not working
Fixed! UE-91146 Packaged ETC2 projects with OpenGL ES3.1 for Oculus devices display a black screen on launch
Fixed! UE-91882 FGoogleARCoreFrame::TransformDisplayUvCoords memory overwrite
Fixed! UE-86396 Motion Controllers fail to track during Launch On
Fixed! UE-91783 Vive Wands are not triggering Haptics when the touchpad is pressed
Fixed! UE-91748 Hololens renders in one eye only with Mobile Multi-View

Great pace in rolling out new versions! Any idea when we could expect chaos to be supported within the binary release (in beta I’d imagine)?

Can’t wait for the actual release!
Changelog looks awesome, as always.

This is going to break almost all of my plugins, I will have to refactor them all lol…
But I have always advocated UProperty should not be an UObject, so cudos anyway!

:slight_smile: Can’t wait to check out…

So many cool things I want to try… but I’m really hoping for 4.25 to primarily prioritize bug fixes.

Well, I am itching to “Play” engine game again.

Sounds very good, in particular the sky atmosphere! But… I would also prefer this update to focus a bit more on bugfixes, specifically UE-87701. Right now, PIE is essentially unusable in combination with large landscapes (which you kind of need in typical scenes involving nice sky atmospheres…)

16 pages of fixes here, but I know what you mean. I assume this release would not be a stability release as GDC would have been the right time to show off some new tech.

So I assume updating our code for the new FProperty won’t be as simple as just replacing UProperty with FProperty everywhere, or will it?

  • Thin Transparency. We have a new Shading Model for Thin Transparency that enables you to achieve PBR tinted and colored transparent objects, such as tinted glass. Use the Thin Transparency shading model and the Thin Transparency expression in the Material graph to set up and use this type of material.


I like the addition of the

To handle disabling private variables now that everything is moving private.
However I had to declare my own

for now as no equivalent was added for the replication override macro as well.

Edit Preview 1 also seems to be missing UnrealHeaderTool in the binaries?

Incredible update, so many good features here. Excited in particular for the new navmesh options, the great new audio features (reverb + sidechain improvements) as well as the Niagara emitter reparenting + new features. Thanks for yet another stellar update.

Navmesh updates look good, a step in the right direction, hopefully more to come. Niagara as well. Very interested in the Networking Insights.
Seeing a lot of “updates” in general in this release, rather than new features, yay, good stuff!
Perhaps this means a focus primarily on bug fixing and stability this time around? Maybe? Hopefully? Yes? PLEASE? :slight_smile:

Looks great. Really hoping the “Fixed in 4.25” list grows exponentially over the coming weeks.

awesome features update!

Just little bit disappointed with raytracing update, still there is no info about raytrace indirect lighting(GI) in reflection to truly solve a bake lighting work for us archviz artist, and roughness in refraction to give us a good frosted glass.

but appreciated your work rock guys!!

Any idea what happened to GetSkinWeightPtr in FSkinWeightVertexBuffer?

volumetric plugin 's material not work !
check it plz!

I was thinking about some witticism to answer your stars-in-the-eyes hope but all I can say is LOL

I hope have a big update for render architecture, like Unity SRP. Every time i update the engine version, it’s a long and stupid process for me to upgrade my render feature to new version.

4.24 Has some issues with landscape material. Sometimes there are too many shaders to compile for landscapes. When I opened an old map, I got ~150,000 shaders to compile, then after restarting the editor, it came down to normal. But again when I tried to paint layer, it gave me another few thousands shaders to compile. Shaders seems to keep compiling in few thousands, whenever I paint a new layer in a new component. Situation goes out of control when tesselation is enabled. Did someone get the same issue?