Unreal Engine Issues

Android build fails with GPU Lightmass plugin enabled

Packaging for Android fails with the GPU Lightmass plugin enabled. A customer reported this and I was able to successfully repro it, however my callstack was different. I'm attaching my logs and cal ...

Linux - Crash when moving/turning the viewport camera in project that contains hair

I've attached the project log, crashreport, and crash info to this ticket. This issue only appears to be happening on Linux (On both Nvidia/AMD cards) and does not happen when the hair is disabled i ...

Spawnable Level Instance via Sequencer in WP map

ULevelInstanceSubsystem::OnActorDeleted: check(!IsEditingLevelInstanceDirty(LevelInstance) && !HasDirtyChildrenLevelInstances(LevelInstance)); ...

Editor crash in blueprint after compiling Post Process Settings node setings

Adding a variable of Post Process Settings structure to a blueprint causes the editor to crash when the blueprint is compiled. Regression: Yes - Editor did not crash on compile in 4.17.2 (CL 365890 ...

Crash upon diffing Blueprint that was reparented when its previous parent has already been deleted

When attempting to diff a Blueprint that has been reparented when the previous parent no longer exists in the editor, a crash occurs. The crash is due to the editor attempting to reference the delet ...

Crash Occurs When Creating Pose Asset from an Animation in Persona

Engine crashes when creating a new pose asset in persona using the Create Asset option -Tested with walk, idle, and run anims -Didn't crash only once out of the several times tested with the Third ...

Crash when editing category name in the emitter summary

Intermittent Crash using Rewind Debugger in Game Animation Sample

Licensee is reporting an intermittent crash when using the rewind debugger in the Game Anim Sample. ...

Editor crashes when right clicking a box collision after adding a converted static mesh in blueprint editor

I created a cylinder with a subtractive cylinder inside of it. I also used a box BSP with a subtractive box inside of it and got the crash to repro. I tried with a sphere BSP twice and didn't get ...

Editor crashes if Sequencer has keyframes for a variable that has changed

The Editor crashes if loaded sequence has keyframes for an actor variable that has been changed, instead of soft erroring out. This was reported and tested on 4.20.3 (CL-4369336). It was reproduced ...