Unreal Engine Issues
Unreal Engine Issues
Crash attempting to force delete a duplicate skeletal mesh while in Paint Mode
OLD - Anim - May 17, 2017The editor crashes when you Force Delete the vertex painted asset in the viewport from the content browser. This was not a feature in 4.15 therefore not a regression This also happens in 4.17 - f ...
Setting Sky Distance Threshold to 0 in a Skylight does not disable the light
UE - Graphics Features - Jul 11, 2017When setting the Sky Distance Threshold to 0, the skylight in the level appears to make the level brighter instead of disabling the added light. This does occur in 4.16.2 and 4.15.3 ...
Particles emit from corrupted positions when spawning from cloth vertex
UE - Simulation - Physics - Character - Aug 4, 2017When spawning particles from skeletalMesh vertices(using Skeleteal Vert/Surf Location), if the specified mesh is a cloth, some particles appear away from the mesh itself. This happens in 4.16 and 4. ...
Getattachedactors does not return the proper value when called from the Constructor
UE - Gameplay - Nov 7, 2018A user has reported that using GetAttachedActors in the Constructor does not work properly. If actors are attached in the editor, the function does not return the correct value when called in the Co ...
Preview Mode Button Does Not Have an Icon When Small Toolbar Icons is Enabled
UE - Platform - Mobile - Feb 25, 2019Preview mode button is missing an icon with "Use Small Tool Bar Icons" enabled. Found in 4.22 Preview 2 CL# 5035897 and 4.23 CL# 5172174 ...
Crash when copy and paste actor track what is spawnable and has event track.
UE - Anim - Sequencer - Jul 13, 2020This issue is regression. It crash only 4.25, and it dosen't crash in 4.24. Copy and past a specific track (spawnable, actor with event track, set endpoint) causes a crash in the editor. ...
VisionOS deferred renderer regression
UE - Platform - XR - Sep 11, 2024Deferred desktop renderer does not function correctly on visionOS. It did work in 5.4. One problem is the r.XRMSAAMode setting forcing 4 samples even when not using msaa, but there are other probl ...
VALIDATE_UNIFORM_BUFFER_LIFETIME fails compilation
UE - Graphics Features - Jul 24, 2025Also verified on Release-5.5.4 CL 40574608 ...
World Outliner Sorting order ignores underscores for order
Tools - May 14, 2015When using the an underscore in the front of a name no longer works for sorting in 4.7 and later. In 4.6 and prior if you added an underscore to the front of the name it would sort to the top of the ...
This project crashes with no crash report when a certain Blueprint is compiled
UE - Gameplay - Blueprint - Jan 28, 2015This user's project crashes with no crash report when its 'BP_Node' Blueprint is compiled. No crash report is generated and the log does not indicate a crash. Note: the project will not open after ...