Unreal Engine Issues
Unreal Engine Issues
r.MaxAnisotropy does not work in editor
UE - Graphics Features - May 21, 2021Setting 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
UE - Niagara - May 20, 2021When 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 ...
FileSystemDerivedDataBackend may output a corrupted access log
UE - Foundation - Core - Derived Data - May 20, 2021This 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
UE - Anim - Sequencer - May 19, 2021Overlapping shots will evaluate all shots instead of the topmost one. ...
StaticMesh - CustomDepth breaks occlusion culling without custom depth enabled
UE - Graphics Features - May 19, 2021Spline mesh can not cast shadow when raytracing enabled.
UE - Graphics Features - Lumen - May 19, 2021Handheld AR: Session fails to Start after minimizing/backgrounding the application
UE - Platform - XR - May 18, 2021When the user minimizes or backgrounds an AR application, and re-opens it, new AR sessions will fail to start ...
Editor becomes unresponsive for long periods between edits of a user-defined enum type when it's referenced by one or more user-defined struct types.
UE - Gameplay - Blueprint - May 17, 2021After adding a member to a user-defined struct type and changing the member type to a user-defined enumeration, repeated edits to that enumeration will eventually cause the editor to become increasi ...
InstancedStaticMesh displaying corrupt lightmap data
UE - Graphics Features - May 17, 2021I think I narrowed this issue down to bad UV coordinates being interpreted during the BasePassVertexShader execution applied to instancing. At this line in VertexFactoryGetInterpolantsVSToPS: flo ...
Sorting objects at EndLoad has a non-deterministic behavior
UE - Foundation - Core - EditorLoader - May 14, 2021This non-deterministic behavior is caused by sorting by program address. ...