Unreal Engine Issues
Unreal Engine Issues
When ControlRig.EnableAnimNodePerformanceOptimizations is enabled, the default pose briefly appears after the Control Rig is reinitialized
UE - CAPT - Control Rig - Sep 1, 2025Since UE5.6, ControlRig.EnableAnimNodePerformanceOptimizations is enabled by default, and this appears to be causing the issue. Specifically, when the control rig’s construction event is processed, ...
"Failed to find object 'Class None'" in project log after creation
UE - Foundation - Core - Nov 17, 2014Users reported seeing the line "LogUObjectGlobals:Warning: Failed to find object 'Class None.'" in the Output log after creating a project. I was able to confirm in a new blank code project without ...
Importing skeletal meshes with uniform scale >1 causes rotation in skeletal mesh editor to improperly register
OLD - Anim - May 11, 2015If a skeletal mesh is imported with a uniform scale of >1, the rotation feature in Persona will not rotate bones at the proper ratio. The meshes rotation will slow down as the uniform scale increase ...
sRGB setting results in difference in Sprite Look compared to Texture Editor
UE - Graphics Features - Jan 16, 2015User is reporting an issue with the preview of a Sprite and its rendering in game differing from the Texture Editor based on sRGB setting. With sRGB = True: [Link Removed] With sRGB = False: [Li ...
Editing multiple Math Expressions will crash the editor
UE - Gameplay - Blueprint - Dec 30, 2014Editing multiple Math Expressions will crash the editor. ...
Execution reroute nodes become wildcard reroute nodes when creating a second reroute node off the same execution pin
UE - Gameplay - Blueprint - Sep 21, 2015Execution reroute nodes become wildcard reroute nodes when creating a second reroute node off the same execution pin. Note: this does not appear to affect their functionality as execution reroute no ...
The packaged folder for a Linux project is more than twice the size of a windows folder
UE - Platform - Linux - Aug 22, 2016LinuxNoEditor folder from a packaged Linux game is more than double the size of a packaged Windows project folder (WindowsNoEditor). Results from packaging an empty Third Person Project Windows (6 ...
Enabling "Support Deferred Rendering with Metal" Crashes on IOS device
UE - Platform - Mobile - Feb 8, 2017After enabling "Support Deferred Rendering with Metal" and then launching to an IOS device (in this case iphone 6+) the game will no longer open and run. REGRESSION? Yes Worked in Binary 4.13.2 C ...
Map load stalls in texture streaming code
UE - Graphics Features - Jun 13, 2017A change was made to AActor.GetComponents which appends the results instead of resetting the output array. This seems to only impact 2 places in the code, and has a big side effect in the texture st ...
Cannot undo moving a mesh via Pilot
Tools - Jan 2, 2018There is an issue where the undo does not affect movement made by piloting an object in a level. This issue does not appear to be a regression. Versions Tested: This issue occurs in all versions te ...