Unreal Engine Issues

Static mesh component reports relative transform as world transform when Physics is enabled

If a static mesh component has Simulate Physics enabled, GetRelativeTransform() returns the value of world transform. ...

Particle disappears if it is using PSA_Velocity and setting custom time dilation 0

A licensee reported some of their particles disappear when setting the actor's custom time dilation 0. This seems to happen when a particle is using PSA_Velocity as Screen Alignment. This repros in ...

Editor crashes while switching to paint mode if material has a grass output and landscape visibility mask

Editor crashes while switching to paint mode if material has a grass output and landscape visibility mask. Frequency: 3/3 ...

Crash when compiling Blueprint Function containing a connected Set Variable node for a local variable named after a replicated Actor property

Creating a local variable inside a Blueprint Function with the same name as a replicated property of AActor (for example, “Role” or “RemoteRole”) and then using a connected Set Variable node for it ...

Certain UPROPERTY values are not updated during auto-recompile

Sometimes manual recompile is required to make a blueprint actually recompile data-only changes, but not always. If the last manual compile was with default values, then changes are not updated. If ...

Modifiers do not behave as expected when adding conflicting mappings of different priorities

Breaking a level instance can not remove the level instance from world

Currently there is no stable way to break level instances ...

Focus mode in the Editor does not handle Actors without PrimitiveComponent correctly, treating them as if they were at the origin (0,0,0), skewing the camera placement.

Focus mode in the Editor does not handle Actors without PrimitiveComponent correctly, treating them as if they were at the origin (0,0,0), skewing the camera placement. Some Actors like the WorldDat ...

Build All Levels fails with duplicate level instances

iPadOS AR App Crashes when ARKit's "Use Scene Depth for Occlusion" is Enabled

Does not crash in 5.4 on same hardware so looks like a regression. Attached Unreal logs indicate source of critical error: 'FARKitCameraOverlayMobilePS' shader uniform expression set mismatched sh ...