Unreal Engine Issues
Unreal Engine Issues
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 ...
Ribbon Trails are inconsistent in Content Examples
Docs - Samples - Nov 1, 2016In the Effects level of Content Examples, the Ribbon trails appears to snap back to the origin of the particle effect after the life of the particle. This is an issue in 4.13.1 as well. This is a ...
With multiple Preview assets on one bone, only one appears in Skeleton Tree
OLD - Anim - Dec 23, 2016With multiple Preview assets on one bone, only one appears in Skeleton Tree. Regression: YES Working: 4.13.2 CL:3172292 Broken: 4.14.1 CL:3224400 ...