Converting a light to Spawnable removes it from Light Mixer

UE - Anim - Sequencer - Jun 5, 2023

This is a regression as the issue does not occur in //UE5/Release-5.1 @ CL 23901901 ...

Windows SDKs not recognized for HoloLens Development

UE - Platform - XR - Jun 5, 2023

This is a regression as the issue does not occur in //UE5/Release-5.1 @ CL 23901901 ...

Full Body IK does not work properly when root bone has large scale

UE - Anim - Rigging - Control Rig - Jul 20, 2023

FBIK becomes extremely unstable when the root bone scale has a value other than 1. ...

Sequencer- 'Dynamic Binding' SoftObjectPtr parameters fail to resolve after reloading editor

UE - Anim - Sequencer - Aug 12, 2024

When reloading the editor and a level where a sequence has a dynamic binding with a soft object ptr parameter to an actor in the same level, the director blueprint will recompile on load of the leve ...

Launch on to HTML5 fails in browser with Expression (mp_Table) failed in LowLevelMemoryMap.h

UE - Platform - Mobile - Jun 16, 2017

I was able to repro this on both FF and Chrome. I have the latest FF 64-bit and was running into this after I deleted my intermediates, ran GenerateProjectFiles.bat, and built UE4 in VS. ...

QAGame Crashes on launch on iphone 6 (iOS 8)

UE - Platform - Mobile - Jan 16, 2017

this crash was encountered during the mobile compat for 4.15. So far, just this device has been affected. ...

[CrashReport] Assertion failed - FAssetEditorManager::OpenEditorForAsset()

UE - Anim - Sequencer - Jul 20, 2017

This is a common crash affecting users in 4.16. Unfortunately they have not provided any additional information ...

Game start slowing down when there are more than 10 sprites in the level

UE - Gameplay - Paper2D - Apr 10, 2018

Sprites seem to be drastically affecting FPS in 4.19 projects on Mac devices. ...

"Assign" node can cause a crash when placed in a graph

UE - Gameplay - Blueprint Compiler - Apr 26, 2022

This may only happen with upgraded projects that went from 4.27 up to 5.0.1 ...

[CrashReport] UBlueprintGeneratedClass::AddReferencedObjectsInUbergraphFrame()

UE - Gameplay - Blueprint - Nov 2, 2017

This is a common engine crash that has occurred since at least 4.16. Users have not provided any useful descriptions of their actions when the crash occurred. The callstack shares some similaritie ...