Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor-MetalRHI.dylib!FMetalRHICommandContext::RHIEndDrawIndexedPrimitiveUP()
UE - Graphics Features - Nov 2, 2017This is a trending Mac/Metal crash in the 4.18 release, although although it has existed with low frequency since at least the 4.16 release. Users have not provided any descriptions of their actions ...
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 ...
Fail to trigger event because no director instance
UE - Anim - Sequencer - Apr 26, 2019MediaPlayer failed to be open on Mac and IOS
UE - Platform - Apple - Oct 9, 2023Linux UI highlights when dragging the editor window
UE - Platform - Linux - Mar 2, 2016Buttons and other UI elements of the Linux editor are highlighted when they are over the pointer's original click position. ...
Long splash screen when launching a cook on the fly project on Android
UE - Platform - Mobile - Mar 16, 2015When launching a cook on the fly project on Android the splash screen last about 2 minutes before the template opens. ...
Material Layers "swap" location instead of shift downwards.
UE - Rendering Architecture - Materials - Oct 17, 2023Licensee request for this as it is affecting productivity. Likely requires a method of allowing a user to choose which behaviour they prefer. For reference, the behaviour changed in CL 11684461 to f ...
Crash when importing new mesh and regenerating skeleton for additive animation
OLD - Anim - Sep 19, 2016Actor does not receive End Play if it was destroyed during the world's Begin Play and it had already begun play
UE - Gameplay - Mar 30, 2018If an Actor destroys another Actor when the game is first starting, then End Play does not get called on the destroyed Actor. In the attached project, there is an Actor Blueprint in the level that s ...
ScreenPosition material node outputs upside down ViewportUV when launching on android
UE - Graphics Features - Aug 28, 2018ScreenPosition UV upside down on mobile. From User: "I believe the editor mobile preview provides "correct" results, while the mobile device produces upside down results. I ran into this issue w ...