Unreal Engine Issues

r.MaxAnisotropy does not work in editor

Setting r.MaxAnisotropy by console in editor has no effect on texture sampler's MaxAnisotropy. If the startup value of r.MaxAnisotropy is 8, then the MaxAnisotropy is always 8 no matter how  r.MaxA ...

Crash when setting Kill Particles to true on some emitters in a Niagara System

When setting the Kill Particles boolean of an emitter in a Niagara System to true, the editor crashes. So far, I've only been able to reproduce the issue with the NS_EH_KP system that a user provide ...

Editor hard-locks when deleting a level converted to World Partition

Encountering an editor hard-lock when attempting to delete a level converted to World Partition. I'm unable to reproduce this hard-lock if the level is created using World Partition, only post-conv ...

UObject properties in OnRep functions can be invalid

The shadow state used to store previous values on the client side is not GC aware, so when an object gets garbage collected it's not nulled out of the shadow state.  This results in stale pointers b ...

FileSystemDerivedDataBackend may output a corrupted access log

This problem is caused by the AccessLogWriter has not been flushed at the termination. The following workaround flushes the Writer.class FFileSystemDerivedDataBackend : public FDerivedDataBackendInt ...

Stacked shots will evaluate both sub sequences instead of just the topmost

Overlapping shots will evaluate all shots instead of the topmost one. ...

StaticMesh - CustomDepth breaks occlusion culling without custom depth enabled

Spline mesh can not cast shadow when raytracing enabled.

Handheld AR: Session fails to Start after minimizing/backgrounding the application

When the user minimizes or backgrounds an AR application, and re-opens it, new AR sessions will fail to start ...

[Feature Request] Support force feedback on iOS and tvOS Gamepads

Unreal Engine should support haptics on gamepads on iOS and tvOS [Link Removed] [Link Removed]  ...