Unreal Engine Issues
Unreal Engine Issues
Crash when enabling Level of Detail Coloration viewmodes in the Dataprep editor while using DX12
UE - Rendering Architecture - RHI - Dec 2, 2019Crash when enabling Level of Detail Coloration viewmodes in the Dataprep editor while using DX12 This crash does not occur when the project is opened with DX11. Note that the Dataprep editor does ...
Crash when playing NiagaraSystem with mesh renderer in CPUSim with Compress Attributes enabled when stompmalloc is enabled
UE - Niagara - Jul 16, 2024Crashes when playing Niagara particles with the following conditions enabled. It crashes only when stompmalloc is enabled, not when disabled. Enable Ray tracingEnable Compress Attributes in System P ...
Distance Field shadow culling when view is at certain angles
UE - Graphics Features - Aug 4, 2015Distance Field shadows are culled for larger meshes at certain angles of the cameras view position. Map with reproduced setup is attached. ...
Groom Assets do not render fog
UE - Graphics Features - Aug 4, 2020Grooms are not rending correctly when volume fog is in a scene. ...
Ray tracing shadows prohibit the subsurface color to show through the object
UE - Graphics Features - Lumen - Apr 6, 2020Ray tracing shadows prohibit the subsurface color to show through the object. ...
FD3D12BindlessResourceManager::GrowCPUHeap will cause GPU heap activation whether it's needed or not
UE - Rendering Architecture - RHI - Sep 11, 2025The ctor of FD3D12BindlessResourceManager implies that GPU heap activation is intended to occur lazily with ERHIBindlessConfiguration::RayTracingShaders, however any call to FD3D12BindlessResourceMa ...
RT shadows break with a 16-bit GBuffer
UE - Graphics Features - Jan 23, 2023Ray traced shadows are missing when the gbuffer is forced to 16-bit. ...
Path tracing gets harsh shading falloff if using area lights
UE - Graphics Features - Lumen - May 24, 2019Thumbnails do not display shadows after opening and saving the asset
UE - Graphics Features - Lumen - Apr 14, 2020Shadows in an asset's thumbnail disappear after opening and saving the asset, whether changes are made or not. Tested: 4.24.3 CL#11590370, 4.25P6 CL#12493028, 4.26 CL#12767035 ...
Crash enabling Stochastic Rect Light with Ray Tracing
UE - Graphics Features - Lumen - Oct 13, 2020Enabling Stochastic Rect Lights with Ray Tracing causes the project to crash. Reported and tested in version 4.26.0(CL 14419252). Tested and not found in version 4.25.3(CL 13942748). ...