Unreal Engine Issues

FComponentReference loses its actor reference when the target actor is reinstanced

The "OtherActor" pointer in an FComponentReference is invalidated when the referenced actor is reinstanced after compilation. ...

Simulate motion vectors can fail on camera cuts

r.MotionVectorSimulation 1 should simulate motion vectors when cutting cameras, but this appears to be broken on some loops. ...

PackedLevelActors are not updated when changing some properties

Packed level actors may not be updated after changing certain properties. Workaround: reload the level containing the PLA. ...

Slate Post Buffer does not work correctly when changing Default Back Buffer Pixel Format

EnhancedInput Triggers can become stuck in an triggered state after pause when using Set Mode UI Only and CommonUI

Static/Skinned Mesh SPropertyEditorAsset widget performance regression

Exponential Editor Slate Performance Cost When Editing An Asset With Nested Instanced Structs

UDN Issue: [Link Removed] ...

Camera Cuts lock doesn't work when simulating

Lock Viewport to Camera Cuts of CameraCutTrack stopped working from version 5.4 during PIE's simulation. This is a regression from 5.3 behavior where the lock remains when simulating. Locking to ind ...

Enhanced Input Action Key Remapping maps old mapping over incoming mapping in an unintuitive way

On EnhancedInputSubsystemInterface.cpp:1040, RebuildControlMappings has a check to preserve mappings for identical action key maps. In most cases, this appears to work correctly; however, in the cas ...

NotifyControllerChanged not always called on client

See linked UDN for more information. ...