The 4.27.1 Hotfix is now live!
Feel free to discuss this release on the 4.27 forum thread .
If you experience a bug with the 4.27.1 Hotfix, please follow the How To Report a Bug Guide to report it on the UE4 Answerhub.
Fixed in 4.27.1
| Issue | Summary |
|---|---|
| UE-116816 | Sketchup Datasmith Exporter Messages window vertical resize changes size of bottom margin for message field |
| UE-117599 | Sketchup - Updating material on Sketchup is wrongly affecting UE via direct link |
| UE-117644 | Fix nested looping sub-sequences |
| UE-118438 | Switchboard - nDisplay config can’t be clobbered during sync when build engine is unchecked |
| UE-118974 | Duplicate sections in the .udatasmith when saving multiple times during the same session |
| UE-118975 | Wrong actor’s label when subassemblies are instantiated |
| UE-118977 | After importing .udatasmith in UE all materials instances are duplicated |
| UE-119375 | Sketchup - Extensions exporter menu buttons and its sections are not localized |
| UE-119692 | Level Snapshots - When a world object has fewer struct collection members than the snapshot object, struct members still show with data |
| UE-121388 | Editor stop working after changing MPDCI type in nDisplay configurator |
| UE-121407 | Crash in engine when secondary views are enabled with OpenXR on HoloLens |
| UE-121500 | VP Templates show Win64 as supported Platforms for the BlackMagic Plugin |
| UE-121596 | SolidWorks Datasmith plugin - DL - No update on parameters change (Color) |
| UE-121939 | Vcam2UI - Take Recorder does not record or save properly and can produce corrupt takes |
| UE-121960 | DisplayClusterConfigurationOCIOProfile variable type causes a crash |
| UE-124675 | [Datasmith Runtime] Unnecessary blockage of GC when building of static meshes |
| UE-124717 | 4.27.1: Bump the version number for DS exporters and UE standalone installer |
| UE-124924 | Replacing placed actor with another class causes error |
| UE-124969 | Remote Control - Control panel and webapp values are not synced after rebinding a property |
| UE-125019 | VPRoles not set by Switchboard |
| UE-125261 | Simulcam Viewport video feed appears grainy / washed out |
| UE-125278 | nDisplay replace texture working in editor but not on nodes |
| UE-126051 | Cannot calibrate individual components of an nDisplay actor with multiple calibration points |
| UE-126112 | Retessellate breaks material slot association |
| UE-126494 | When launching via Switchboard and auto connect to MU session the sequencer MU buttons don’t work |
| UE-126571 | Alias product version in Analytics is not reflecting the relevant information |
| UE-120460 | Datasmith plugin - Archicad Export & Direct-link with hotlinks crashes Archicad |
| UE-123588 | datasmith exported files end up with one master material per archicad material |
| UE-119881 | wire import crash on file generated by alias 2021.3 |
| UE-126643 | Alias Importer: Alias 2021 is not compatible with UE |
| UE-117098 | Hidden layers in SKP still exports geometry |
| UE-121427 | Crash when attempting to load File Media Source using image file in Media Player |
| UE-121809 | Datasmith Runtime metadata on scene objects is not imported |
| UE-129778 | [Regression] Solidwork exporter - Scene elements badly structured now |
| UE-118373 | Sketchup DS exporter - Texture duplication at export |
| UE-121414 | DMX - sACN unicast isn’t received in the Editor |
| UE-121563 | DMX Monitor changes ports when altering project settings. |
| UE-123655 | DMX - Adding patches to DMX Library take recorder causes warnings to show |
| UE-123658 | DMX - Fix a crash when a library asset is present but cannot be loaded, e.g. because saved with a newer engine version |
| UE-123693 | DMX - Activity monitor triggers an ensure when user modify the universe range |
| UE-121562 | Pixel Mapping fails in packaged build using Material or UMG source |
| UE-121810 | DMX - UI for Universe view stuttering with specific scale |
| UE-121141 | Effect of ColorCorrectRegions (CCRs) not being excluded when added to hidden actors or layers of nDisplay inner frustum. |
| UE-126298 | Sequencer Playback Manager - pause / hitch on take recorder |
| UE-117679 | nDisplay Nodes Crash After Lightmass Bake |
| UE-119954 | Level snapshots don’t automatically re-populate if you change levels |
| UE-124739 | Per Viewport CC Reset Button Zeroes out RGBY Rather than Resetting to 1.0 |
| UE-118783 | Light bake transfer killed MU server |
| UE-121191 | Remote API - MIDI and Booleans seem to be bugged |
| UE-126043 | nDisplay - Playback sequence doesn’t transact to nDisplay render nodes |
| UE-127644 | CCR - Priority not transacting on nDisplay render nodes |
| UE-121443 | Geometry showing incorrect perspective when rotated - nDisplay config |
| UE-121463 | Output remap crash while saving ndisplay config |
| UE-121484 | Stage monitor bad performance when dealing with high event counts |
| UE-121956 | Switchboard unable to execute console commands |
| UE-122121 | Unloaded classes fail to recreate |
| UE-123664 | nDisplay/Editor crash when reapplying livelink preset during Multi User |
| UE-125926 | Lens Tool taking 5+ minutes computing asset references |
| UE-121244 | Level Snapshots - Crash upon expanding level snapshot |
| UE-118972 | Exporting to datasmith does not save the mesh for a new assembly with new parts |
| UE-121528 | Datasmith for Rhino Exporter Plugin Crashes when reassigning object’s layer |
| UE-116873 | Sketchup - Stamp operation isn’t pushed via direct link synchronize |
| UE-117520 | Sketchup - Dynamic component copies not sent via direct link synchronize |
| UE-117559 | Sketchup - onClicks visibility toggles is not synchronized via directLink |
| UE-117638 | Sketchup - Nested group visibility can’t be synchronized via Direct Link |
| UE-119372 | Sketchup - Extensions exporter top menu option is not localized |
| UE-119446 | Sketchup - Texture label repeated on export |
| UE-121524 | Sketchup - Updating object color and resyncing via direct link does not change color on Unreal side |
| UE-125060 | Sketchup - Folder visibility can’t be synchronise via direct link auto-sync |
| UE-121449 | SOLIDWORKS: Changing Material and rebuilding leads to the partial .datasmith export |
| UE-119099 | Match3 on Android closes without authorisation to the google account |
| UE-123751 | Screen space shadowing performance is severely impacted when utilizing MSAA with the forward renderer |
| UE-127672 | Playing audio from Niagara does not work in cooked builds |
| UE-120544 | Unsupported’message doesn’t occur when enabling Dynamic Resolution |
| UE-120316 | Packaged ShooterGame crashes on open silently with MacOS version error message |
| UE-119168 | Crash while performing r.HairStrands.DebugMode 6 on the TM-HairAndFur level |
| UE-122320 | Platform development blocked with Xcode latest build system enabled |
| UE-121844 | Editor crash on Instanced Subobjects of an outer class in Class Picker |
| UE-123546 | Scene is disappeared if mobile ambient occlusion is enabled in 4.27 on IOS |
| UE-126108 | Update datasmith/dataprep plugins to take them out of Beta |
| UE-122385 | Datasmith Runtime imported Datasmith mesh does not render normal textures correctly |
| UE-117105 | Fatal error: /…/Runtime/OpenGLDrv/Private/OpenGLShaders.cpp] ActionRPG crashes on SHIELD Tablet |
| UE-126087 | Crash loading a Niagara System when the project contains cooked content that references a Niagara Parameter Collection and Allow Cooked Content In The Editor is disabled |
| UE-118489 | Crash interacting with the viewport -vulkan |
| UE-118689 | Editor crashes when deleting imported hierarchy in the Rig Hierarchy |
| UE-120042 | Crash when attempting change color from Parameter Default tab for MDL material asset |
| UE-120116 | Crash on Linux QAGame when Mobile Preview(PIE) is used |
| UE-120997 | Crash when attempting to overwrite an nDisplay Config via Content Browser import |
| UE-121394 | Crash on Linux after start Python script for set a Level Variant Sets thumbnails |
| UE-121485 | No class info found for replicated player controller crash |
| UE-121492 | The editor crashes when reopening a Control Rig after undoing an import in that Control Rig |
| UE-121551 | USD Stage - Receiving system crash when trying to replace selected actors with single animation skeletal |
| UE-121608 | Crash after exiting Play in VR Mode |
| UE-123523 | Crash when exposing nDisplay config root properties to RC Preset |
| UE-127245 | Lidar - crash when importing some E57 files |
| UE-127354 | Editor crashes when imported OCIO assets are interacted with |
| UE-127397 | Crash editor after editing property of TwoBoneIK node |
| UE-122317 | [CrashReport] UE4Editor-TextureEditor!FTextureEditorToolkit::HandleTabSpawnerSpawnProperties(FSpawnTabArgs const &) [TextureEditorToolkit.cpp:1581] |
| UE-118601 | [CrashReport] UE4Editor-NiagaraEditor!UNiagaraNodeDataSetBase::SynchronizeWithStruct() [NiagaraNodeDataSetBase.cpp:307] |
| UE-120317 | [CrashReport] FNiagaraScriptExecutionContextBase::Execute |
| UE-122306 | [CrashReport] UE4Editor-OpenXRHMD!FOpenXRHMD::DrawVisibleAreaMesh_RenderThread(FRHICommandList &,EStereoscopicPass) [OpenXRHMD.cpp:2991] |
| UE-124664 | [CrashReport] static void UE4Function_Private::TFunctionRefCaller<<lambda_f06ac80225d691667414e308847e98ee>,void __cdecl |
| UE-126021 | [CrashReport] FColorStructCustomization::OnColorPickerWindowClosed |
| UE-126484 | [CrashReport] static void DispatchCheckVerify<void,<lambda_d24db9228de6de8f00fd80737dd7cbe1> > |
| UE-126485 | [CrashReport] UE4Editor-Slate!const struct FSlateBrush * TBaseSPMethodDelegateInstance<1,SCheckBox const ,0,FSlateBrush const * __cdecl(void) |
| UE-126492 | [CrashReport] UE4Editor-Engine!FSlateTextureRenderTarget2DResource::InitDynamicRHI() [SlateTextures.cpp:342] |
| UE-127174 | [CrashReport] UE4Editor-KismetCompiler!static bool DoesTypeNotMatchProperty(class UEdGraphPin *, const struct FEdGraphPinType & const, const struct FEdGraphTerminalType & const, class FProperty *, class FCompilerResultsLog & const, class UClass *) |
| UE-120630 | Cannot add DataInstance.Alive to a script graph until it is added through the Parameters panel first |
| UE-117923 | Dataprep - Metadata Value tooltip text should be updated |
| UE-127201 | Naviswork - wrong number version in runtime info. |
| UE-121815 | Datasmith Revit plugin installer does not see Revit 2022 if it is the only version installed |
| UE-126064 | DMX - Output Console - Fader labels do not rename properly |
| UE-120241 | Long hitch and ensures when applying changes to a Script with disconnected Parameter Map pins |
| UE-124945 | Data Interface User Parameter bindings are not editable on non-user versions of the DI |
| UE-127200 | Moving or resizing the Sequencer window while recording a take breaks the recording |
| UE-125068 | NumericPrice of an item for In-app purchase is 100 times of the correct price |
| UE-124614 | [Spatialization Plugins] - Audio output Doesn’t Sound Clear; Doubling Through Master Submix EQ |
| UE-121824 | Crash clearing the Virtual Textures that a landscape draws to when sampling it with a Niagara System |
| UE-120478 | Entering a cvar in Switchboard via Execute button does not save to list, entering via ‘Enter’ key does |
| UE-121224 | Remote Control Web Interface Stacked Color Picker Reset not Functioning |
| UE-126575 | Remote Control Template Breaking when CCR Position Transforms Exposed |
| UE-126877 | Level Snapshot - Relative location filtering from result view doesn’t work as expected |
| UE-119732 | Material of Skeletal Mesh does not render correctly when using multi-UV with ES3.1 and using Render Static |
| UE-121242 | r.MobileHDR=0 and r.MobileMSAA=2/4 crashes on iOS |
| UE-129499 | Broken CustomDepth for a translucent materials on mobile |
| UE-130685 | Bringing up the integrated virtual keyboard on iOS 15 devices causes a crash |
| UE-116608 | Creating your first Blank BP project loads into an empty level |
| UE-124984 | LiveLink - Message bus sources are not working since recent modifications in Multi-user |
| UE-126588 | UE Hang and eventually Crash after enabling Looping in the media track session of a lvl sequencer |
| UE-126199 | Modifying a Mesh used by a Mesh Renderer can cause all existing instances of it to stop rendering until the System is manually compiled |
| UE-120702 | Importing USD files with blendshapes doesn’t load correctly |
| UE-121398 | NV12 format support for DX11 & DX12 RHIs |
| UE-129780 | MU / Take recorder - record event is triggered before the sequence asset is transacted to nDisplay nodes |
| UE-121201 | nDisplay - Output remap is flipped when using an external file |
| UE-114438 | DisplayCluster Editor - Importing an nDisplay config corrupt components |
| UE-125142 | Paused Sounds Do Not Have their Channel Map Updated Properly on Device Swap |
| UE-120942 | Can’t create new Data Interface parameters through a Set Parameters module |
| UE-125087 | HeightFog render error in DX12 |
| UE-121493 | Editor crash when ending take recorder take |
| UE-121909 | Sequence - Camera export receives double transform from parent hierarchy |
| UE-119915 | Game server failed to initialize with Steam when logging an Online Test Presence |
| UE-124709 | Fix crash when ending PIE with seamless travel enabled |
| UE-125221 | OSS Steam: FUniqueNetIdSteam FArchive serialization broken |
| UE-127661 | GI bounces missing from static SkyLight. |
| UE-127669 | Height fog removed in split screen when player1 is facing the opposite direction. |
| UE-123653 | Unreal Engine deadlocks in AssetRegistery code on AWS when on a 4 core VM |
| UE-117439 | Enable and verify raytracing on WinGDK |
| UE-126913 | Unnecessary error warning firing when dragging in widget archetypes derived from C++ UserWidgets. |
| UE-121160 | Landscape Distance Fields artifacts using DX12 |
| UE-124700 | UBT crashes on Mac if a project includes the Launch module as a dependency |
| UE-126786 | ImgMedia does not build on Mac |
| UE-126882 | Engine.Emitter.SimulationPosition is not correct for Emitter Spawn and Update stages |
| UE-109049 | Compile on load crashes for classes within an abstract class |
| UE-116743 | UVs editing dont update from Rhino using direct link |
| UE-121950 | Saved MRQ deactivates sequences after render finishes. |
| UE-124540 | Sketchup: Autosync does not take effect on color / material change |
| UE-121781 | MediaFramework - Webcam Video input shows as black in Media Player |
| UE-125141 | Fatal Error: FMallocBinned2 Attempt to realloc an unrecognized block when exiting a packaged game that has the Bink Media plugin enabled |
| UE-122125 | USD - Kitchen Set scene importing with 900+ meshes |
| UE-116230 | Static Mesh - LOD Groups - Reimporting LOD Group prompts a Popup Window to clear LOD Group |
| UE-125906 | Android Vulkan SM5 crash at startup |
| UE-127910 | iPhonePackager code signature not supported by iOS 15 |
| UE-117500 | Out-of-bounds read caused by improper return size from FSocketSteam::RecvFrom in Unreal Engine |
| UE-87625 | Graphic Corruption appears rendered to the left-eye during head movement on a packaged Quest build of TM-StereoLayers-GearVR or TM-MotionControllers |
| UE-103190 | Compute Weighted Normals Checkbox not updating on Reimport |
| UE-110249 | MoviePipeline: Disabling Auto Exposure in Project Settings not respected |
| UE-114069 | Occasional crash when attempting to in-app purchase on Android device |
| UE-116304 | Remote Control Preset - Selected Group should be highlighted |
| UE-117754 | Mistyping in StringArray category upon creating a new custom Dataprep filter |
| UE-117886 | Rebuild MTLPP as Universal 2 binaries |
| UE-117917 | Module behaves differently whether emitter is set to CPU vs GPU mode |
| UE-117933 | Content Browser doesn’t refresh when creating Data Table from Data Prep editor |
| UE-118065 | Two select outlines are shown when selecting Lidar points |
| UE-118267 | Select overlapping actors does not select actors that are fully inside over actors |
| UE-118534 | Remote Control API - WebApp should use preset id, instead of name |
| UE-118626 | Media Track looping section not updating media after its initial loop |
| UE-118788 | Validation error when trying to create sRGB textures at startup |
| UE-118813 | Editor freezing after dragging AnimInsights utrace into the insights window |
| UE-119232 | Remote Control API - if numeric value is invalid, json is not valid |
| UE-119377 | ARCore plane orientation isn’t handled in platform agnostic AR API |
| UE-119581 | Can’t zoom and pan to accurately select point during nodal calibration |
| UE-119666 | Crash when importing FBX through Editor Utility Widget |
| UE-119685 | Level Snapshots - Collections do not appear when world object’s collection property has no members but snapshot’s object’s does |
| UE-119752 | USD Export/Import and Adjacency Buffers |
| UE-119760 | Level Snapshots - Checked States of nested scene components are not updated when unchecking actor group |
| UE-119795 | Menu button is missing on Mac UI in the Timing Insights tab |
| UE-119873 | Viewport shakes when Color Correct Region properties are set to extreme values |
| UE-120160 | Rendering from the Movie Render Queue at runtime while using the current level will fail, even when the levels match |
| UE-120178 | Changing the Normal Import Method on a mesh is not repected when the uasset is re-imported. |
| UE-120191 | Import a Static Mesh with High Detail LOD seems to force Compute Normals and Tangents no matter the GUI setting |
| UE-120401 | Viewport’s OverlapOrder parameter doesn’t work |
| UE-120483 | Movie Render Queue does not render letterboxes to exports with sensor aspect ratios between 16:9 and 1:1 |
| UE-120525 | Project Settings’ link in Android Android Developer Page on Iconography links to a 404 webpage |
| UE-120826 | USD CineCamera USDStage xform |
| UE-120886 | Collaborative Viewer - dataSmith Run time only in Fly Mode |
| UE-120893 | MotionController Device Visualization controller models aren’t aligned 1:1 with their physical counterpart |
| UE-120925 | USDStage - Inconsistent Behavior Saving Animation on USDStage Actors back to USD |
| UE-120991 | Assertion Error Thrown when client using Epic Online Services uses the quit button while in a match |
| UE-121012 | Hang On Cook in Audio Capture Timecode Provider |
| UE-121089 | Water_Material crashes editor when adding Scene Depth Without Water node |
| UE-121158 | Mobile preview with r.MobileMSAA=4 shows a black screen due to mismatched backbuffer and offscreen target format |
| UE-121235 | Start in VR crashes when Oculus headset is worn on startup |
| UE-121239 | GetMotionControllerData returns OpenXR for device name |
| UE-121245 | Ensure when Edit Layers for a landscape is enabled on Linux |
| UE-121327 | Remote Control Preset - Crash when packaging project |
| UE-121340 | HQ Noise Map artifacting due to reflection capture in forward shading |
| UE-121361 | DebugDrawHelper memory leak in editor |
| UE-121372 | Niagara Crash : ExportParticleDataToBlueprint module causes buffer overrun |
| UE-121399 | Goldenpath Project - Level Snapshot Load/Save filter is not displaying filters already made |
| UE-121491 | Editor freezes/becomes unresponsive after rendering through MRQ twice with Overwrite Existing Output disabled |
| UE-121508 | Class Viewer Doesn’t Show All Available Classes In Project |
| UE-121592 | Variant Manager handling of FRotator is broken |
| UE-121846 | EngineTest GLES Assertion failed: StructuredBuffer->GetStride() == 16 |
| UE-121867 | Failed to read file warnings for files in …Editor/Slate/Niagara folder |
| UE-121870 | Datasmith Tessellation does not work as operator in the visual dataprep |
| UE-121925 | VPFullScreenUserWidget crashes when loading another level |
| UE-121932 | Switchboard - Device with same IP address as Switchboard should also be eligible for MU server rebuild |
| UE-121959 | VR Template: Projectile travels through Static geometry |
| UE-121978 | Packaging IPAs over 2GB fail with iPhonePackager |
| UE-121979 | mobile deferred shading doesn’t work correctly if pre-pass is enabled. |
| UE-122061 | Broken OpenXR API Layers after installing Vive Pro Software |
| UE-122111 | OpenXR Play Area Bounds data is inverted |
| UE-122123 | Tangent is divided twice by Decimal Rate when importing animation from FBX in Sequencer |
| UE-122124 | Curve interpolation settings are forced to change from User to Break when importing animation from FBX in Sequencer |
| UE-122158 | Ensure on renaming DataInterface parameter in scratchpad |
| UE-122197 | NiagaraDebugger shows same value for all instances |
| UE-122198 | SampleSplineRotationByUnitDistance crashes when used |
| UE-122226 | Images Rendered out by Movie Render Queue has much more visible Banding issue in gradient |
| UE-122382 | Race condition when displaying a stereo layer on the Oculus runtime |
| UE-122383 | Performance Issue with Ribbons |
| UE-122401 | User can not override cube texture sample |
| UE-122409 | Ensure in MovieScenePropertyTrack when packaging |
| UE-123536 | WINAPI_PARTITION_GAMES dependency on .\Engine\Source\ThirdParty\Windows\DirectX\Include\d3d12.h |
| UE-123543 | PixelStreamingKeyFilter is only one letter works. |
| UE-123554 | GameplayCameras plugin LoadingPhase is too late in 4.27 preview 4 |
| UE-123593 | Update ARCore SDK to 1.22.0 |
| UE-124607 | Editor crash when disabling looping in a nested subscene |
| UE-124615 | Handheld AR template not available in AEC and Automotive project categories |
| UE-124649 | Incorrect ZLib compression block size on GDK platforms |
| UE-124679 | Assert in FVulkanDevice::FVulkanDevice() on Linux w/ Mesa |
| UE-124682 | take recorder only recording 24fps |
| UE-124737 | Sequencer KeepState behavior can produce unexpected results in low-framerate situations |
| UE-124766 | Fix incorrect functions being called for restoring custom subobjects |
| UE-124813 | MoviePipeline: Locked master sequences cause shot-section active states to restore incorrectly |
| UE-124918 | Specular artifact on IOS if SSAO and MSAA are enabled. |
| UE-124929 | Unloaded class is not loaded when recreating snapshot actors |
| UE-124962 | Shading normals on foliage instances are incorrect |
| UE-124999 | Actors from removed / unloaded levels crash when restoring |
| UE-125276 | Test Automation - Filtering out dev content is not working anymore |
| UE-126027 | SN-DBS fails to retry task on transient failure like disk space error |
| UE-126116 | Camera Calibration - Static Analysis Warning |
| UE-126171 | Niagara script DDC Key invalidated by parameter definition link state |
| UE-126582 | PinName for Niagara Stack/Select nodes are localized |
| UE-126694 | Optimize blit operations and improve GPU utilization on Apple Silicon |
| UE-126699 | Phat: Ctrl+a selecting in the skeleton tree of physics asset not showing result in the details panel |
| UE-126831 | Take recorder doesn’t stop or finish fully if the panel is not focused |
| UE-126885 | Cannot Set Transient Namespace Parameters from Stack Set Parameters Module |
| UE-126896 | Race Condition in UBT When Detecting Outdated Actions |
| UE-126986 | Easyblend projection doesn’t pickup origin parameter |
| UE-127033 | UDN: Ensure fires randomly when playing the game |
| UE-127045 | The Documentation URLs for our Datasmith plugins in the UE Plugins window are incorrect |
| UE-127110 | Remote Control Panel - Open details button sometimes needs to be clicked twice |
| UE-127113 | Reduce size of OpenXR device assets |
| UE-127118 | Always show Light needs to be rebuilt after building light |
| UE-127175 | Add character conversion to avoid player name character errors |
| UE-127199 | USD - UDIMS are not loading |
| UE-127279 | Pressing ‘l’ should play forward at the initial speed when the sequence is not playing |
| UE-127437 | Crash when cooking Skeletal Meshes with MorphTargets who’s target is not the running platform |
| UE-127444 | Remote Control - Remote Control servers are started automatically in - game which causes issues when launching the editor with switchboard |
| UE-127451 | need to make some private header change for AMD’s FSR plugin coming in 4.27.1 |
| UE-127643 | Viewports render target cleaned up after copied to the BB texture |
| UE-127646 | Dome projection policy crash |
| UE-127698 | Inconsistent results with groom decimation |
| UE-127962 | EHMDTrackingOrigin Enum isn’t used correctly |
| UE-129046 | Fix crash when re-instancing BP after running incremental GC |
| UE-130723 | Building for iOS using Xcode 13 causes Unsupported Legacy Build System Error |