Unreal Engine Issues

Converting BSP to static mesh on Linux causes the editor to crash

Converting a BSP to a static mesh will freeze and crash the editor when done on Linux. Windows does not exhibit the same conversion crash. ...

Niagara Fluids Grid3D_Gas_Explosion causes a crash

Placing Grid3D_Gas_Explosion into a level then packaging the level for windows will crash the packaged project. The package will give an error that it crashed while loading and quit.  This does not ...

Datasmith Tessellation does not work as operator in the visual dataprep

Crash when playing a HapticFeedbackEffect_Soundwave

Array is -1 indexed, causing a crash. Fix is already in Dev-VR. Integrate to 4.13.1 (CL 3106922) ...

Ensure condition failed: PrimitiveComponent tried to render with Material MaterialInstanceDynamic, which was not present in the component's GetUsedMaterials results

Top 10 ensure in 4.15. There was a fix submitted for [Link Removed] which was verified as following those steps to reproduce no longer causes this. ...

EDL in 4.15 may not be fully safe and should be disabled by default

EDL may have some issues that are very hard to reproduce that's why we should disable it by default in 4.15.2. We will re-enable it in 4.16 ...

[CrashReport] UE4Editor-Renderer.dylib!FUploadObjectsToBufferCS* TShaderMap<FGlobalShaderType>::GetShader<FUploadObjectsToBufferCS>()

This is a common crash affecting Mac users in 4.16 User DescriptionsMacOS High Sierra Beta 2 - Starting a project ...

[CrashReport] Crash on Mac - UE4Editor-IOSTargetPlatform.dylib!FIOSDeviceHelper::DoDeviceConnect()

This is a common crash affecting Mac users on 4.16, it has occurred since at least 4.14. Users have not provided any descriptions. ...

Renaming a Blueprint variable loses override in grandchild Blueprint

Renaming a Blueprint variable loses override in grandchild Blueprint. Modifying and saving the BP_Child fixes the issue with BP_Grandchild losing overrides.  ...

Stationary directional light per-object shadows not working with origin rebasing

Not 100% clear if this is a bug or expected behaviour, but raising it as it needs looking it. Can't see it as fixed elsewhere. Confirmed broken in 4.24 too. ...