I was having trouble with the fluid sim but then I activated the volumetric plugin and that seemed to get things going but now when I activate the wave foam I get this:
Hi,
Strange things with raytraced shadows foliage in 4.26 preview 4.
I converted my 4.25 scene to 4.26 preview 4.
All seems to work well accept foliage shadows.
I have 3 grass meshes foliage scaled from 0.2 to 0.4.
When I paint these foliages, I have good raytraced shadows. But if I fill the whole mesh (Like i did with 4.25) I loose my shadows.
I tried differents ways. I changed the scale to 1 and retry to fill⌠all is working as expected with nice shadows.
So I scaled my original my fbxs to 0.2 and re-import them to fill with scale at 1. And no shadowsâŚ
Anyone knows what i missedâŚ
thxâŚ
Not sure If someone has already reported It but Ray Trace Shadows doesnât work with the spotlight.
Ray Trace Shadows works with everything else tho.
4.26 preview4 linux bugs/Issues:
Volumetric cloud , water plugin ( water materials), and volumetrics plugin have issues.
Editor crashes almost every time when objects are added to map through viewport.
If you try to rearrange UI by dragging it crashes every times. (tried many times to dock level panel)
Is there a way to get rid of this blocky division between where the clouds and the water meet? Iâve tried most of the setting on the water material, WaterMeshActor, and the VolumetricCloud and itâs material but canât figure it out. When I raise the Layer Bottom Altitude, it gets a bit better but itâs still there. REALLY obvious when seen through foliage.
Also, the terrain isnât showing up in high resolution screenshots, this images attached are from snipping tool.
Good day to all. I tested GPU LIghtmass in 4.26.0 preview 4. And have some problems with UV seams on geometry. When building light use CPU i have not UV seams problem. How can solve this problem?
having the same issue, would be nice to know if itâs a known issue waiting to be fixed or any workarounds 
UPDATE!
We have just released Preview 5 for 4.26! Thank you for your continued help in testing the 4.26 build before its official release. As a reminder, the Preview builds are for testing only, and should not be used for the active development of your project.
For a list of known issues affecting this latest preview, please follow the links provided on the original post in this thread.
Please read:
After reviewing feedback from custom licensees and the community at large, we made the call to ship a 4.26 preview build with functionality that is closer to what you will be able to expect with the full release. Chaos will ship as the default physics and destruction system early next year.
Stability is a top priority and we will continue to review all feedback on Chaos as folks test it in a range of environments. Again, thank you to everyone who has provided feedback so far. Weâd love for you to keep it coming!
You are still able to use Chaos in your projects if you compile the engine from source.
**NOTE: **Niagara instability is known and has been fixed for Preview 6.
REMEMBER: Please report any new bugs you find by following the How To Report a Bug Guide
Fixed in Preview 5
Fixed! UE-97459 GitHub 7287 : Fixed bug with AnimNode_SaveCachedPose does not properly propogate Initialize to children
Fixed! UE-101030 Sync groups with non-local scope can collide, causing incorrect behaviour
Fixed! UE-101502 Ensure during FBX anim import (ExpectedWorkThisFrame <= 1.01f * TotalAmountOfWork - CompletedWork )
Fixed! UE-95358 Curve with Type Material is not shown in Anim Curves panel if only âMaterialâ checkbox is selected in filters
Fixed! UE-100744 Editor crashes on saving Keep Simulation Changes [AnimSequence.cpp: 1512]
Fixed! UE-101423 Changing the value of an IKFK switch uses that value for both key frames
Fixed! UE-101430 Sequencer:NLA Muting AnimationTrack will still show skeletons
Fixed! UE-101319 Sequencer: NLA Pelvis location moves when changing Yaw,Pitch,Roll Toggles
Fixed! UE-101264 MovieRenderQueue - In PIE, hang when starting a job after exiting PIE
Fixed! UE-101470 MoviePipeline: Temporal Samples + Layers stalls
Fixed! UE-101426 Toggling IKFK Switch sometimes add a second key on the same frame
Fixed! UE-101271 Preroll (and postroll) in other shots continue to evaluate when âEvaluate Sub Sequences in Isolationâ is enabled
Fixed! UE-101474 Unreal crashes when jpg pass is disabled in Movie Render Queue
Fixed! UE-101487 Subscene playback causes other shots to be visible
Fixed! UE-101549 Sometimes attach tracks do not work correctly because the objects are still static
Fixed! UE-101788 Additive From Base blends do not work on Transform tracks
Fixed! UE-62813 GitHub 4972 : Exposing subtitle-related properties of Sound and Dialogue Wave to blueprints
Fixed! UE-44574 GitHub 3525 : Able to use PlaySound2D for non-UI related sounds
Fixed! UE-97090 OnAudioPlacebackPercentage PlaybackPercentage (float) doesnât take into account âStart Timeâ from Play or FadeIn nodes
Fixed! UE-79968 GitHub 6186 : Add AssetUserData support to SoundBase
Fixed! UE-100226 Ambix decoding doesnât work as expected from all rotations
Fixed! UE-101706 crash on load w/ oculus reverb plugin asset
Fixed! UE-85093 SynthComponent does not execute OnStop() after calling Stop()
Fixed! UE-101415 Fix misuses of FMath::Clamp
Fixed! UE-101504 GitHub 7429 : Actually warn when a Primary Asset ID conflicts, instead of just logging
Fixed! UE-101325 Inconsistent binary output when resaving meshes
Fixed! UE-101683 Stat group without Scoped cycle counter canât be activated unless another group is active
Fixed! UE-101885 Json Reader hits an assertion when deserializing invalid JSON
Fixed! UE-100575 Low-level memory tracking has negative values for âFMallocUnusedâ and âUntrackedâ
Fixed! UE-100486 Compilation of installed build from cmd fails: Attempt to add file to temp storage manifest that does not exist (E:\Git\4.26\cpp.hint)
Fixed! UE-92688 GitHub 6891 : Fix settings.json generation for single project (VSCode)
Fixed! UE-101461 GitHub 7424 : Expose GameplayTagWidget to other modules
Fixed! UE-85936 Dynamic navmesh update causes navlinks to reset to their default state
Fixed! UE-100927 UMG animations do not work when nativized
Fixed! UE-101269 Crash on opening Sequence Director for Level Sequence
Fixed! UE-99676 Crash running construction script after compiling BP function library
Fixed!
UE-100767 Ensure while promoting collapsed nodes, containing custom event to function: MyNode->GetOuter() == ToPin->GetOwningNode()->GetOuter() [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Engine/Private/EdGraph/EdGraphPin.cpp
Fixed! UE-101507 GitHub 7430 : [BUG] Iterator value doesnât change if it is valid
Fixed! UE-101798 Editor crashes upon exit if remote control server fails to bind on port
Fixed! UE-101503 GitHub 7428 : Adding initialization of member variable in VoiceCaptureWindows
Fixed! UE-100903 Turning Chaos vehicles will cause the vehicle to spin out of control
Fixed! UE-101001 Crash on first opening of TM-ChaosDestruction level (QAGame) or first launch of ChaosDestructionDemo in Binary
Fixed! UE-100897 TM-RectLights: No Shadow is Casted From A Movable Light on a Static and Stationary StaticMesh
Fixed! UE-92609 GitHub 6885 : [BUGFIX] Honor UE4âs Mono build environment using Build.sh
Fixed! UE-93372 Investigate using llvm binutils over our current binutils for our Toolchain
Fixed! UE-101496 4.26 build fails with Xcode 11.7
Fixed! UE-100814 Crash occurs when opening A Boy and His Kite demo package on Mac
Fixed! UE-100964 Python3 library needs to be rebuilt to to target 10.14 with dwarf-2 debug symbol tables
Fixed! UE-101628 Xcode 12.1 support
Fixed! UE-95254 GitHub 7153 : fix: ios push notification token callback
Fixed! UE-57425 tvOS Apps Fail to Resume After Suspend
Fixed! UE-101139 GitHub 7409 : Adds more UPL plugin injection points for Android Activity and Application.
Fixed! UE-101443 ios webauth still has iOS 11 logic
Fixed! UE-101449 Exposure difference between PC and Mobile preview if PP material applied with Before Tonemapping blendable locationmode
Fixed! UE-100168 When launching QAGame/TM-UMG on Android Blur is disabled, the rectangles are filled with textures and the Low-Quality Scaling button does not work.
Fixed! UE-99329 Android Random Startup Crashing
Fixed! UE-101321 Change the way we are adressing different iOS versions behaviors in Input Interface
Fixed! UE-101670 Crash when creating a material with âOutput velocities due to vertex deformationâ enabled in Project Settings
Fixed!
UE-101374 [CrashReport] static void TEnqueueUniqueRenderCommandType<`BeginInitResource'::`2'::InitCommandName,<lambda_62eddc873155d85469e17b1ba3893b43> >::DoTask(ENamedThreads::Type, const class TRefCountPtr<FGraphEvent> & const) [RenderingThread.h:183]
Fixed! UE-96102 Cooking EngineTest Dedicated Server Gets Stuck Trying to Cook An OpenColorIOColorTransform
Fixed! UE-89965 InfiltratorDemo dropping below 20 FPS
Fixed! UE-94406 UDN Bug with cascade skeletal mesh LODs
Fixed! UE-95334 [CrashReport] UE4Editor-Engine!FGPUBaseSkinAPEXClothVertexFactory::ClothShaderType::UpdateClothSimulData
Fixed! UE-92949 Use of SpiralBlur-SceneTexture MaterialFunction in translucent material results in compile errors
Fixed! UE-101294 Shadows still visible when Sprite are hidden using Visibility Tag
Fixed! UE-99846 Max delta time seems to be broken
Fixed! UE-101267 Modifying a User Parameterâs default value does not update the Override Parameter value on system instances in the level beyond the first
Fixed! UE-101278 When renaming emitters in Niagara, it doesnât let you change capitalization for existing characters
Fixed! UE-101697 large compile time regression in 4.26
Fixed! UE-92682 Tracking a Niagara user parameter does not display the parameterâs correct default value in the Sequencer Tree
Fixed! UE-92744 Override Parameters do not update in the Details panel when modified by Sequencer
Fixed! UE-101828 Make iteration source variables easier to work with in the stack
Fixed! UE-85158 Ray Tracing Post Process Volume settings cannot be edited by Sequencer
Fixed! UE-101908 Change default of r.RayTracing.SkyLight.EnableMaterials to 1
Fixed! UE-101071 Crash enabling Stochastic Rect Light with Ray Tracing
Fixed! UE-101454 Compile errors in AgcRayTracing.cpp
Fixed! UE-95918 Fix Vulkan CPU readback
Fixed! UE-101282 GitHub 7414 : Fix crash when ClearUAV in OpenGL ES
Fixed! UE-101079 Failing to compile global shaders with OpenGL4 enabled
Fixed! UE-97041 [CrashReport] libUE4Editor-VulkanRHI.so!VulkanRHI::FDeviceMemoryManager::Alloc(bool, unsigned long, unsigned int, void*, float, char const*, unsigned int) [VulkanMemory.cpp:313]
Fixed! UE-58566 Memory Leak when Debugging Blueprint
Fixed! UE-101531 Crash when creating new project on Linux
Fixed! UE-99506 Crash when repairing MotionBlur-Texture material function (VK_ERROR_DEVICE_LOST)
Fixed! UE-100906 Ensure placing atmospheric fog into level with -vulkan referencing VulkanDescriptorSets.h
Fixed! UE-101589 VulkanMemory.cpp - Crash occurred when quitting ContentExamples Niagara -vulkan
Fixed! UE-101286 GitHub 7416 : Refactor UEdGraphPin::GetPrimaryTerminalType to reduce code duplication
Fixed! UE-101408 GitHub 7422 : Master
Fixed! UE-101354 [CrashReport] UE4Editor-DetailCustomizations!FSplinePointDetails::UpdateValues() [SplineComponentDetails.cpp:599]
Fixed! UE-101626 Asset guideline warning persists when deleting object.
Fixed! UE-101288 GitHub 7417 : AddToolbarExtender for StringTableEditor. public HandlePostChange for?
Fixed! UE-101579 Error Failed mark the file for add when executing EditorAssetLibrary.rename_loaded_asset command with source control enabled
Fixed! UE-99747 Starter content option is blank in the project browser when the feature packs is missing
Fixed! UE-101425 Rhino Exporter - Textures with invalid characters are not exported with the scene
Fixed! UE-101187 DirectLink Revit Add-on - Child Actor name change between 2 sessions
Fixed! UE-101306 DirectLink Revit Add-on - Actor and itâs child Actor have the same name
Fixed! UE-100048 Crash after clicking Execute button in Dataprep asset instance
Fixed! UE-101484 Diffused Texture does not retain changes after .udatasmith reimport
Fixed! UE-101676 Collaborative Viewer - Interaction with UI stop working when have more then one VR User
Fixed! UE-100600 CAD import: DWG file import is broken in 4.26Preview2
Fixed! UE-99701 CAD - Importing 3DXML file return an error: Worker process issue (worker lost)
Fixed! UE-82786 solidworks mesh names incorrect
Fixed! UE-100219 USD - crash changing framerate in sequencer - Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff
Fixed! UE-101755 Crash opening a Third Person template project - Assertion failed: ImportLODModel.Sections.Num() == RenderLODModel.RenderSections.Num()
Fixed! UE-80336 [CrashReporter] UE4Editor-Core!FGenericPlatformMemory::OnOutOfMemory(unsigned __int64,unsigned int) [GenericPlatformMemory.cpp:186]
Fixed! UE-101455 Fallback for decimal separator seems not to work anymore
Fixed! UE-101611 Crash when Scaling a StaticMesh with Collision geometry created by MeshToCollision Tool
Fixed! UE-101622 Gizmos are scaled when using inputs with nonuniform scale in Mesh Boolean Tool
Fixed! UE-100646 Editor crashes in Concert when using Retopologize tool
Fixed! UE-93186 Python fails to pass a UObject through to another Python function when it is a UFunction.
Fixed! UE-101732 WidgetReflector doesnât respect itâs display header
Fixed! UE-95890 UMG Crash with abstract widget classes.
Fixed! UE-100741 Launching a packaged game calling DownloadImage with -nullRHI option crashes
Fixed! UE-99698 SwitchBoard - No icons in add devices for Motive, nDisplay and Sound Devices
Fixed! UE-87157 nDisplay - config file path with spaces not supported.
Fixed! UE-100614 SwitchBoard - Nodes are showing Project CL instead of Engine CL after restarting SB
Fixed! UE-98166 Aja Kona 4 720p aliasing/rendering issue.
Fixed! UE-101304 Color Correct regions fail for certain shading models
Fixed! UE-101787 DMX - DMXTemplate main map shows black when clicking âplayâ
Fixed! UE-101832 K2Node crash when loading umap
Fixed! UE-101785 DMX - Crash when opening up WaterFountainTemplate map in DMXTemplate project
Fixed! UE-100619 MF - DMX Universes Performance Check
Fixed! UE-101207 Crash when stopping PIE while DMX running
Fixed! UE-101786 DMX - DMXTemplate pixel mapping map does not work anymore
Fixed! UE-100710 MF - Crash Report
Fixed! UE-101424 MF - Fixtures lighting up when very far from camera position
Fixed! UE-101616 MF - Lens material wonât stop glowing
Fixed! UE-101422 MF - Counter Intuitive Zoom Logic
Fixed! UE-101102 DMX Fixture - beam mesh color is sometimes desaturated looking.
Fixed! UE-101445 Set default attributes for Firework, laser, pyro, and fountain
Fixed! UE-101623 DMX Fixtures - Failed to load FWGlobals for Fireworks
Fixed! UE-98203 nDisplay crashes if window size is bigger than size of the main display
Fixed! UE-101384 nDisplay / SteamVR conflict
Fixed! UE-97951 startsequence crashes with nDisplay
Fixed! UE-101318 Remote Control API - webapp plugin should run on non-windows
Fixed! UE-100643 Remote Control API - Not getting property change notifications
Fixed! UE-101313 Remote Control API - WebApp should quit together with ue
Fixed! UE-101310 Remote Control API - WebApp should be started automatically by a dedicated plugin
Fixed! UE-101315 Web Control API - WebApp changes
Fixed! UE-101765 Remote Control API - No presets are displayed when the web app is initially launched
Fixed! UE-101451 Remote Control API - WebApp many tweaks
Fixed! UE-101717 Remote Control API - Web interface needs to be restarted if WebControl port changes
Fixed! UE-101441 Remote Control API - Build warning, path is too long
Fixed! UE-101868 Remote Control API - Website sends responds with header bytes when making requests through websockets
Fixed! UE-100636 Remote Control API - Delayed Change notification
Fixed! UE-101473 Switchboard is missing a dependency on VirtualProductionUtilities for its OSC blueprint
Fixed! UE-101072 VCam Output Provider SetActive does not check outer Component is enabled
Fixed! UE-101402 When using Composure + RemoteSession, iPad input events donât route to the proper window
Fixed! UE-101577 Virtual Camera Plugin needs old content deprecated
Fixed! UE-99894 Web App VP - Web Socket PIE / Simulate
Fixed! UE-101929 Ensure in VCamSample_CameraActor in debug build QAGame startup
Fixed! UE-101702 Composure RenderTarget usage missing from MediaOutputProvider
Fixed! UE-101281 GitHub 7413 : Enable depth composition on HoloLens when using OpenXR
Fixed! UE-95066 GitHub 7114 : Fix volumetric particles drawn twice in left eye with instanced stereo
Fixed! UE-100164 Crash with Assertion failed: !bIsLoadActionInvalid when entering VR Preview while in VR Mode
Fixed! UE-99714 DBuffer decals render only in the right eye in VR Preview
Fixed! UE-101428 Video/image captures on HoloLens are too transparent
Fixed! UE-101709 Oculus changes to fix OpenXR on Quest
Fixed!
UE-101931 Quest crash on Vulkan in FVulkanSubresourceAllocator::DefragTick
Fixed! UE-101627 OpenXR crashes when closing VR Preview
Fixed! UE-101822 Upgrade hololens allocator to FMallocBinned3
Fixed! UE-101218 Crash occurs in VR when triggering Grip controller button on Vive Pro
Just tried P5. Chaos is totally broken. The GCâs are not destroyed. Help.
Chaos is not installed. Can you fix this? The plugin is enabled.
can confirm that Chaos destruction is not working and the fracture editor is not showing. plugin is enabled
Same⌠
When I click modes there is no fracture.
If Preview 5 is where It looks like it is on Github, PhysX was changed to be the default again for whatever reason. Which would be why Chaos seems broken entirely.
Just upgraded from 4.26 preview 4 to 5 and now I canât even launch the editor. Get a pop up error PythonScriptPlugin failed to load and plugin âPlatformCryptoâ failed to load.
What can I do to fix this?
Thanks for the reports everyone - weâve adjusted the latest update to fully reflect changes to 4.26 Preview 5.
âââââââ
âââââââI did get source 4.26 from github. If I compile this will Chaos be there?
Virtual Texturing is missing from the Material Domain dropdown in the material details⌠did something change with the workflow or is this a bug? I donât see anything in the release notes mentioning it.
preview 5 âFractureâ mode doesnât show up for some reason.
