Unreal Engine Issues

Android Projects packaged for arm64 crash on device.

This issue was discovered while smoke testing Release 4.13 for Preview 2. ...

Multiplayer Shootout project sample is crashing on start

The project sample Multiplayer Shootout in the Learn tab is crashing on start up with 4.7.4 Crash does not occur on 4.8. Tested by Patrick.D on Main CL-2498147 Pass in 4.7.5 dev. - CKC 2503383 ...

Fbx Camera doesn't import Focus Distance

When importing a camera from maya through .fbx, focus distance is not correctly imported.  See images attached.  Client initially reported.  Can reproduce. ...

USD Stage is not available on Mac and Linux

On Mac and Linux the option to open the USD Stage window is not there like it is on Windows. This is not a regression since USD Stage was not preset in 4.23.1 (CL-9631420) on any platform. ...

Custom data update crash - invalid memory when removing an instance from a UHierarchicalInstancedStaticMeshComponent

This is a race condition, did not crash with -onethread. Attached the collected threaded callstacks, although they look misaligned. Licensee has provided a suggested fix. ...

Cloth simulation doesn't work correctly if Compute Skin Cache is ON.

It seems that cloth simulation doesn't work correctly on 4.20 if Compute Skin Cache is ON. We can easily repro it with Content Example [Link Removed] Is this by design? ...

Apple TV offline saves fix

Offline save games don't work on Apple TV, (in fact all file operations fail) because Apple has decided that you can't store anything in the NSDocumentDirectory anymore. The fix is to replace occurr ...

UObject Macro Libraries cannot use functions that require a WorldContext

If you make a Blueprint Macro Library that derives from UObject you are then unable to use any functions that require a WorldContext, like Delay. This is because the WorldContext cannot be assumed l ...

Crash in UAssetToolsImpl::CreateAssetWithDialog where the UFactory::GetSupportedClass() is deferenced without check if its null.

GPU memory leak during large source control operations

We've seen some reports of GPU memory leaks during source control operations caused by the animation of the throbber widget, potentially leading to a crash if GPU memory runs out. The crash has been ...