Unreal Engine Issues
Unreal Engine Issues
Crash when playing a HapticFeedbackEffect_Soundwave
UE - Platform - XR - Aug 30, 2016Array is -1 indexed, causing a crash. Fix is already in Dev-VR. Integrate to 4.13.1 (CL 3106922) ...
[Feature Request] CVars for HISMC
UE - World Creation - Worldbuilding Tools - Foliage - Jun 18, 2021Currently some (if not all or most) foliage CVars affect both foliage and HISMC. It would be nice to split this so that users can change the values of one without affecting the other. ...
iPadOS AR App Crashes when ARKit's "Use Scene Depth for Occlusion" is Enabled
UE - Platform - XR - Dec 13, 2024Does not crash in 5.4 on same hardware so looks like a regression. Attached Unreal logs indicate source of critical error: 'FARKitCameraOverlayMobilePS' shader uniform expression set mismatched sh ...
Crash occurs when executing r.RHIThread.Enable 2 command
UE - Rendering - Architecture - RHI - Jan 19, 2023This is not a regression. Tested in //UE5/Release-5.0 CL20379098 Editor crashes with an assertion after executing the command r.RHIThread.Enable 2 ...
Transparency for Widget components is not working on iOS devices
UE - Editor - UI Systems - Oct 20, 2015If the user has a widget with an opacity less than 1 it will be rendered as though the opacity was set to 1 on iOS devices Note: Possible regression ...
Selected item in property matrix cannot be deselected
Tools - Aug 23, 2016When selecting an item in the Property Matrix you cannot deselect. This affects changes you make that are supposed to be across all items selected by making them only affect the item selected. ...
Placing meshes on World Partition Grid causes them to load in from any distance
UE - World Creation - Worldbuilding Tools - World Partition - May 26, 2023This is not a regression as in 5.1.1 the meshes will load and unload in their proper cell squares when entering and exiting the load distance threshold ...
Large brush sizes causes hitching in Landscape Sculpt mode
UE - Graphics Tools - Terrain - Landscape - Jan 19, 2023In my case I used the erosion brush and smooth brushes. Not a regression checked in Version: 5.1.0-23058290+++UE5+Release-5.1 ...
CPU Lightmass generates different lighting results on a landscape if executed via a commandlet vs through the editor
UE - Graphics Features - Jul 3, 2025Building lighting via commandlet and via editor are giving different results. To prevent one method from polluting the other via Swarm cache, the cache needs to be cleared in between tests. ...
Collision Channel on Particle Systems not saving
UE - Graphics Features - Oct 21, 2014Setting the Collision Channel to anything other than World Static will reset on closing and restarting the editor. ...