Unreal Engine Issues
Unreal Engine Issues
K2Node_GetEnumeratorName doesn't support bitmasks
UE - Framework - Blueprint Compiler - Jan 29, 2025This is almost identical to [Link Removed]. The difference is that we need a variant of UEnum::GetNameByValue that supports bitmasks. We'll likely have to run this by Core. ...
Sphere Mask ArgInvHardness missing multiplication
UE - Rendering Architecture - Materials - Jun 27, 2025Hi Epic, In MaterialExpressions.cpp UMaterialExpressionSphereMask::Compile(), hardness is not calculated the same way in both <if> conditions. One is missing a multiplication by 0.01f. Specificall ...
MRQ - No Rayrtaced Shadows casted from Groom Caches with only 1 Spatial Sample
UE - Anim - Sequencer - MRQ - May 28, 2025A groom cache will not cast a raytraced shadow with only 1 spatial sample. It does not matter how many temporal samples you have. ...
SourceControl: Error: Operation 'UpdateChangelistsStatus' not supported by source control provider 'Subversion'
UE - Editor - Workflow Systems - Apr 15, 2021When trying to check in a new asset or changed asset via the source control menu or Tools menu, an error comes up in output log. SourceControl: Error: Operation 'UpdateChangelistsStatus' not suppor ...
Add ThinLTO support to iOS
UE - Platform - Apple - Jun 27, 2023iOS link times could be sped up by adding ThinLTO support as was done for Android recently. ...
Property Coloration isn't supported for Nanite
UE - Graphics Features - Nanite - Sep 11, 2023Property Coloration View Mode is not supported by Nanite. (Left cube is Nanite and isn't affected by the Property Coloration view mode) [Image Removed] ...
FCollisionProfileNameCustomization doesn't support Multiple Values
UE - Editor - Applied Usability - Aug 16, 2023The class FcollisionProfileNameCustomization customizes the property editor for the class FcollisionProfileName. However, it does not handle the case where multiple assets/actors are being edited si ...
Commandlet Exits With Code -1073741819 and Exception FPlatformMisc::RequestExitWithStatus(1, 3, WindowsPlatformCrashContext.EngineUnhandledExceptionFilter)Engine exit requested (reason: Win RequestExit; note: exit was already requested)
UE - Foundation - Apr 9, 2025When a commandlet is run it successfully completes but does not terminate the engine correctly. It appears that multiple requests are made to terminate the engine process these subsequent engine ter ...
GPU Lightmass does not support bounce lighting from landscapes
UE - Graphics Features - Jun 29, 2024GPU Lightmass does not support bounce lighting from landscapes, but CPU Lightmass does. ...
SingleLayerWater does not support shadows on local lights
UE - Graphics Features - Dec 2, 2022Local (point/spot) lights currently do not have shadows on SingleLayerWater materials. SLW uses forward-like clustered shading and loops over all local lights directly in the pixel shader. In order ...