Unreal Engine Issues
Unreal Engine Issues
AnimDrawDebug does not work if using RootMotion from Everything
UE - Anim - Gameplay - Feb 14, 2023Debug drawing with AnimDarwDebug~ does not work when RootMotionMode is set to "RootMotion from Everything". In addition, the same issue occurs when MultiThread of Animation is turned off. Licensee ...
FMassArchetypeData::ExecutionFunctionForChunk crashes on binding shared fragments
UE - AI - Mass - Feb 14, 2023FMassArchetypeData::ExecutionFunctionForChunk is using wrong mappings while binding shared fragments. It's using RequirementMapping.ChunkFragments while it should use RequirementMapping.ConstSharedF ...
crash from a race condition between interchange worker dispatcher and worker handler
UE - Editor - Content Pipeline - Import and Export - Feb 13, 2023Atmosphere related scan line artifacts for Path Tracer with MGPU
UE - Graphics Features - Path Tracer - Feb 10, 2023There are two UDNs related to this issue. It makes the Path Tracer unusable with MGPU, with atmosphere enabled. I already have a one-line fix implemented and tested. The atmosphere scan line arti ...
Alpha blending is done twice when using RenderOpacity of RetainerBox's parent slot
UE - Editor - UI Systems - UMG - Feb 10, 2023Licensee reported that alpha blending is done twice in the code below, and the fix below seems to fix it. .\Engine\Source\Runtime\UMG\Private\Slate\SRetainerWidget.cpp From:const FLinearColor Compu ...
Stencil Test Post Process Breaks in Stereo Rendering
UE - Platform - XR - Feb 9, 2023[Link Removed] post process material is blacking out our left eye A test project is provided. ...
Errors occur when moving duplicated Material Instances
UE - Rendering Architecture - Materials - Feb 9, 2023Licensees have reported that two UMaterialInterfaceEditorOnlyData objects are being created for duplicated assets, causing a name conflict when renaming. ...
Editor Crashes when copy/pasting an emitter in the Niagara timeline
UE - Niagara - Feb 8, 2023When creating the emitter's track widget we search for the stack view model's root entry, but the stack view model pointer is null, so we crash. ...
Calling RemoveAllAnchors function on a non-clustered geometry collection falls extremely fast
UE - Simulation - Physics - Destruction - Feb 8, 2023Non-clustered geometry collections applied RemoveAllAnchors are not put into FPBDRigidsSOAs::DynamicGeometryCollectionArray, so acceleration is not reset every tick and they fall super fast. The fol ...
NiagaraEditor timeline folders are not saved correctly
UE - Niagara - Feb 8, 2023It works correctly in 5.0.3. ...