Unreal Engine Issues
Unreal Engine Issues
REGRESSION: HierarchicalInstancedStaticMeshComponent LOD transitions are broken in 4.9 and Main
UE - Graphics Features - Aug 24, 2015While testing another fix I noticed HISM LOD transitions are not working in Main or 4.9 branch. There is no screen-door effect and multiple LODs seem to be rendering simultaneously compared to 4.8. ...
UnrealBuildTool fails to build generate project files or build if the project is stored on a non-HFS partition
UE - Foundation - Cpp Tools - UnrealBuildTool - Mar 29, 2016When a user attempts to compile a project that is stored on a non-HFS partition on OSX, UBT fails to build due to files that are being generated that start with ".". The user's proposed fix is to ha ...
FixupRedirects commandlet does not auto-commit deletions
Tools - Jun 15, 2016See this UDN: https://udn.unrealengine.com/questions/297811/fixupredirects-commandlet-submitting-marked-for-de.html The fix looks straightforward, just a one-line change but could benefit from tes ...
GC Clustering broken for USoundWave assets (crash)
UE - Foundation - Core - Mar 29, 2017Assert crashes Editor in the GC system during packaging due to USoundWave assets not being configured for GC clustering. Disabling GC clustering in project settings is a workaround, but the fix is ...
Crash when setting Anim to "None" with URO
OLD - Anim - Aug 28, 2019A Crash can occur when setting a skeletal mesh's animation instance to None when it has Update Rate Optimizations enabled. An unverified proposed fix for this is to remove the nullptr check when ...
Adding a track for LayerData.Offset to UMG Animation throws an Ensure
UE - Anim - Sequencer - Mar 14, 2022Adding a track for LayerData.Offset throws an ensure that states "No default blender class specified on property, and no custom blender specified on entities. Falling back to float blender." This do ...
[Sequencer][Audio] - Soloing a nested audio track mutes all tracks
UE - Audio - Sequencer - Jan 20, 2022When soloing an audio track in sequencer, all the tracks are muted and nothing in soloed. Attached video shows Mute working correctly followed by Solo not working[Link Removed] Cannot reproduce i ...
Child Actor Components do not update their internal properties when applying instance changes to other instances
UE - Gameplay - Components - Apr 14, 2022Child Actor Components do not update Materials when applying instance changes to other instances. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did occur there, it ...
Skeletal Mesh does not deform as expected when Metal Desktop Renderer is ON
UE - Rendering Architecture - RHI - Apr 20, 2022When using the provided UI to test the skeletal mesh morph, it doesn't work while using Metal Desktop Renderer. It works as expected when Metal Mobile Renderer is enabled instead. Working on repro ...
Debug Lines can be seen through objects at certain camera angles.
UE - Graphics Features - Apr 28, 2022Debug Lines can be seen through objects that occlude them at certain camera angles. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did not occur there, it is a regre ...