Unreal Engine Issues
Unreal Engine Issues
Motion Matching FPS instability causes jittering when using the root offset node
UE - Anim - Gameplay - Feb 23, 2026Offset root node is affected by frame rate and produces jitter in it's motion across various settings and styles. ...
Crash upon using EComparisonMethod as a variable in a struct
UE - Gameplay - Blueprint - Jul 17, 2017Having a variable of the type EComparisonMethod inside of a struct causes the editor to crash. This could be due to the variable being as part of the Development folders in code. Attempting to repro ...
Projects crash on Android when trying to load mips
UE - Platform - Mobile - Jan 20, 2017Projects that are deployed in the Debug configuration crash when trying to load mips on the Android device. I do not see this issue when launching a project onto Android using the Test configuratio ...
Can Not Add New Montage Section Name to a Montage on a Mac
OLD - Anim - Nov 21, 2017-Section Name shows up on Windows and not Mac -Does not occur in 4.17.2 Currently waiting to test in 4.19 ...
The CopySkinnedModelData() function is no longer called from anywhere in the Engine
OLD - Anim - Apr 11, 2018The CopySkinnedModelData() function is no longer referenced by any code in the Engine as of 4.19. The function should either be marked as deprecated or removed from the Engine. ...
Functions overriden from Parent BPs are not called in Child BPs when nativized
UE - Gameplay - Blueprint - Jul 2, 2018When nativization is enabled, functions in a child blueprint that were overriden from the parent are not called properly. Regression?: Yes This did not occur in 4.19 ...
Automotive Photo Studio Template project renders custom render passes incorrectly
UE - Editor - Content Pipeline - Datasmith - Importer - Dec 19, 2019Renders with a custom render pass from the level in the Automotive Photo Studio Template are incorrect. They appear to be affected by auto exposure. ...
Shader Complexity not working correctly on Deferred Decals
UE - Rendering - Graphics Features - Sep 3, 2020If you place a deferred decal in the world and then set the view mode of the viewport to "Shader Complexity", the decal doesn't affect the complexity value. ...
Font outlines do not multiply color and opacity from parent widgets
UE - Editor - UI Systems - Slate - Jan 16, 2017We don't currently multiply by the parent widget's color and opacity when calculating the color and opacity of a text block's outline. Since color and opacity are precalculated before the outline is ...
Creating new objects inside ForEachObjectWithOuter may cause the bucket of the iterated outer to be read-locked permanently
UE - Foundation - Feb 8, 2022Not a Regression. Tested in: //UE5/Release-5.0 CL 18747223 Source-GitHub //UE4/Release-4.27 CL 18319896 Binary User Description: "The crash test code is located at Source/HashBucketLockedBug/Pr ...