Unreal Engine Issues
Unreal Engine Issues
Skeletal Mesh Cloth - Removing cloth collision sources doesn't remove the prerequisite, and the collision sources are not updated
UE - Simulation - Visual - Mar 17, 2026[Link Removed] See proposed fix from partner: [Image Removed] ...
Hierarchical instanced static mesh LOD is not consistent between eyes
UE - Platform - XR - Apr 7, 2017User reports that the issue fixed for ODIN-6308 still occurs for InstancedStaticMeshes. ...
Can't preview correctly when using Lookat Track with [Can Blend] enabled
UE - Anim - Sequencer - Feb 15, 2021When I play it in PIE, it plays fine. This problem does not occur in 4.25.4. ...
Ray traced GI denoiser blotches/artefacts
UE - Graphics Features - Lumen - Sep 15, 2021See licensee description of the issue for more info. Issue did not occur in 4.25. ...
ListView crashes when GlobalInvalidation is enabled.
UE - Editor - UI Systems - Slate - Jan 11, 2022Reverting to the fix in [Link Removed] (CL#17788567) will avoid the crash. ...
Nested inline UObject properties don't expand in Actor blueprint detail panel
UE - Gameplay - Components - May 9, 2016Customer provides details, including a fix for the problem. See UDN post attached. ...
Folder Renaming is not Case Sensitive
UE - Editor - Content Pipeline - Content Browser - Mar 28, 2018Renaming folders is not case-sensitive Previously fixed in 4.12, re-appeared ...
'recompileshaders changed' doesn't work
UE - Graphics Features - May 7, 2021The issue is already fixed in UE5 by CL 14368553. This Jira is created for cherrypick into UE4 ...
Usd wrapper uses TCHAR_TO_ANSI conversions causing path issues with basic extended ASCII character set
UE - Editor - Content Pipeline - USD - Jun 12, 2024It seems that a simple change from TCHAR_TO_ANSI to TCHAR_TO_UTF8 in UE::FUsdStage OpenStageImpl() fixes the issue. ...
[AI] Navigation System can be constructed in situations where the NavigationObjectRepository subsystem is not valid
UE - AI - Navigation - Feb 7, 2025Investigate and fix all calls where the Navigation System is constructed without the NavigationObjectRepository subsystem being valid. ...