Unreal Engine Issues
Unreal Engine Issues
[MRQ] Deleting all jobs after rendering queue with executor causes an assertion to fail.
UE - Anim - Sequencer - MRQ - Apr 18, 2022Deleting all jobs after rendering queue with executor causes an assertion to fail. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 by utilizing a For Each Loop and Delete Job node ...
Anim curves default back to 0.f instead of material default
OLD - Anim - Sep 13, 2017This seems to be a regression of [Link Removed]? Difficult to say. Originally reported here: https://udn.unrealengine.com/questions/391665/animcurve-parameter.html ...
Can Ever Affect Navigation does not detect updates to collision settings at runtime
UE - AI - Jan 27, 2016When a mesh has its collision updated during runtime the navigation around the mesh does not update. Workaround: If the mesh is set to simulate physics then updates to its collision will update nav ...
Insufficient precision of Decode71 function
UE - Rendering Architecture - Shaders - Jun 5, 2025Encode71 and Decode71 in DeferredShadingCommon.ush are functions that convert 8-bit values to 7-bit values and mask values, and licensees have reported that the accuracy is insufficient when usi ...
Standalone window played from editor hits assert Index >= 0 in UObjectArray
UE - Gameplay - Blueprint - Sep 23, 2016Standalone window in editor will hit assert in a bit of time. Issue doesn't happen is playing standalone via Visual Studio. ...
[Interchange] mesh outside LODs hierarchy are added to only lod 0 it should be added to all lods
UE - Editor - Content Pipeline - Import and Export - Oct 9, 2024Log Warning: LogRender:Warning: Missmatch between bShouldGenerateLowQualityLightmaps(0) and r.SupportLowQualityLightmaps(1)
UE - Graphics Features - Jul 13, 2016The issue occurs in //UE4/Main as well. This issue can be easily seen by opening any project at latest. It has been observed in new projects both with and without starter content. ...
Replicated subobjects list crashes with unreachable yet valid objects when UE_NET_SUBOBJECTLIST_WEAKPTR=0
UE - Networking - May 8, 2023This seems to occur when the subobject is considered unreachable but is not yet pending kill/marked as garbage. In this case, IsValid returns true while FWeakObjectPtr::Get returns nullptr for the o ...
Grass on landscape Component was messed up when painting blend mask if this component has LODBias>0
UE - LD & Modeling - Terrain - Landscape - Dec 19, 2018Editor crash when shader debugging enabled including r.shaders.optimize=0
UE - Rendering Architecture - Shaders - Jun 23, 2024The editor crashes when activating cvar options for shader compilation and debugging. ...