Unreal Engine Issues
Unreal Engine Issues
CLONE - Project does not cook with actors containing ModularSynth component
UE - Audio - Sep 13, 2017A project does not cook with actors containing ModularSynth component. The error is a follows UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: begin: stack for UAT UATHelper: Pack ...
StartCameraFade() breaks on mobile projects after editor is closed/reopened
UE - Platform - Mobile - Oct 6, 2015If a project that is set to Mobile/Tablet and Scalable 3D or 2D uses StartCameraFade() to produce a fade in effect, the effect will not play in PIE if the editor is closed/reopened. ...
Ensure when using ellipsis overflow method with very small Slate text boxes
UE - Editor - UI Systems - Slate - Aug 12, 2024The Ellipsis overflow method on text widgets can cause an ensure to trip as a result of a render batch being sent with no indices. We could guard against this in SlateRHIRenderingPolicy by checking ...
Possible bug with GAOGlobalDistanceFieldCacheMostlyStaticSeparately
UE - Graphics Features - Jun 2, 2025The Global Distance Field can constantly update, even when the camera is stationary, in large World Partition maps. This bug requires a large amount of the World Partition map to be loaded to reprod ...
Root Motion from Everything doesn't accept Root Motion from Montages
OLD - Anim - Feb 18, 2016Root Motion from Everything doesn't accept Root Motion from Montages in 4.11. This works in 4.10. Can regress down the issue if needed. ...
Unable to interact or collide with geometry collection after Removal on Sleep or Break timer finishes, yet unbroken piece continue to render
UE - Simulation - Core - Dec 18, 2025Context: A static mesh is able to have a geometry collection generated from it using the Fracture editing mode. It can be fractured in many different ways, and when acted upon by a chaos field agent ...
Game instance spawning object crashes .exe in packaged project
UE - Gameplay - Blueprint - Mar 19, 2015If an actor is spawned using game instance blueprint, a packaged .exe will crash upon loading. Frequency: 2/2 Crash Reporter: [Link Removed] ...
Crash when changing the World Grid Material to Unlit
UE - Graphics Features - Mar 13, 2017A crash occurs when setting the WorldGridMaterial from the Engine Content to the Unlit Shading Model and pressing apply. ...
Editor crash while saving asset during cook operation
UE - Foundation - Data Pipeline - Cooker - Apr 2, 2025It is possible to experience an editor crash in 5.5.4 when the cook process generates a warning that references an asset while the editor is saving. It seems that during a save operation, the code t ...
Set World Location at Spline Point node doesn't change spline point locations
Tools - Jul 10, 2015The Set World Location at Spline Point node does not correctly update the location of the indicated spline. ...