Unreal Engine Issues
Unreal Engine Issues
Mirror operation on Physics Asset produces wrong results for constraints, including flipped axes
UE - Simulation - Physics - Feb 7, 2025The Physics Asset Editor has a "mirror" feature that allows physics bodies and constraints to be mirrored from one side of a skeleton to the other. If this operation worked correctly, it could save ...
Sphere Reflection Captures overridden by Skylight
UE - Graphics Features - Jun 10, 2025When using non-Lumen lighting and Screenspace reflections off, the skylight location overrides the Reflection Capture location during Build Reflections. This results in a Reflection Capture taken fr ...
Instanced meshes do not accurately use volume light samples when lit in a statically lit scene
UE - Graphics Features - Aug 14, 2015When using instanced meshes in a Blueprint or in foliage tool the indirect lighting cache will not correctly light these meshes. I've include a sample project with map to demonstrate what the lice ...
Reset Instance Changes to Blueprint Default does not revert changes made to instances
UE - Gameplay - Blueprint - Sep 15, 2015creating an instance of a blueprint and making changes to the instance will not respect "Reset Instance Changes to Blueprint Default" when pressed from Details Pane. ...
Timeline name changes do not propagate to related nodes
UE - Gameplay - Blueprint - Mar 17, 2015Timeline name changes do not propagate to related nodes. Refresh All does not rename nodes that reference the timeline, and Getters and Setters are no longer valid nodes. Reproduced in 4.7.2 binary ...
While renaming a variable in the Details panel, clicking another variable will rename it instead
UE - Gameplay - Blueprint - Feb 11, 2015While renaming a variable in the Details panel, clicking another variable will rename it instead. ...
LIVE: Print string not working when nav mesh bounds volume information is pulled up
UE - AI - Nov 12, 2014After place a Nav Mesh Bounds Volume into a level, launching the game and pressing the [ ' ] key to show information about the Nav mesh the print string stops working. If the User closes the game w ...
Enabling World Composition Skips Intro Movies
Tools - Jun 24, 2016Startup movies are skipped when World Composition is enabled. Even with the 'Wait for Movies to Complete' option enabled, the startup movie plays for a very short time, and then the level is loaded ...
A Pass-by-Reference function input cannot accept a reference to Self
UE - Gameplay - Blueprint - Dec 30, 2014A Pass-by-Reference function input cannot accept a reference to Self. Workaround: Cast from Self to the desired class and use that for the function's input. ...
Looking at several BPs during play, that add multiple static meshes in construction script, drops the FPS
UE - Graphics Features - Jan 9, 2015Looking at several blueprints during play, that add multiple static meshes in their construction script, drastically drops the FPS. As a workaround, I suggested to the user that he should use Insta ...