Unreal Engine Issues

XR Planar Reflections lag behind VR headset movement

Planar Reflections lag behind VR headset movement [Link Removed] Reporting that reflection captures lag because they happen before late update is applied. Includes an experimental patch that fi ...

The AABBTree spatial acceleration structure goes off-sync when physics substepping is enabled in a "low" framerate environment.

When you enable the physics substepping, if you run the console command p.Chaos.Solver.DebugDrawSpatialAccelerationStructure 1, you can see how does not follow the physical object. The user that rep ...

Physics Asset primitives are being created with the default Name as None instead of BoneName_PrimitiveType

When creating Physics Assets, either by automatic creation upon import, creation from skeletal meshes already in the project, or when we press Generate All Bodies (bottom right of a opened Physics A ...

Parameters are not copied and when copy pasting a child actor component of an actor to another actor.

[AI] The ZoneGraph show flag is in the ZoneGraphEditor module but used during runtime in ZoneGraph module

The show flag for ZoneGraph lives in the ZoneGraphEditor module, but it is used for debugging at runtime by the main ZoneGraph module. There are protections around the type of build and some for EDI ...

Constraint Binding ID is broken on attach track when subsequence asset is moved.

Moving a level sequence asset that contains actors that are being referenced as a subsequence in an attach track causes the references to drop, even though the subsequence reference is correctly upd ...

Viewport Controller Camera Control Regressions in UE5.8

In UE5.8 it appears some changes were made to the camera control and navigation in the editor viewports. You can no longer use controller and mouse simultaneously to control the camera. Previously ...

Cached State Machine is re-initialized whenever cached pose is referenced

This may not be an expected use of state machines, but it is becoming a showstopper for a couple of users. These user's are caching their locomotion state machine and then using a second state mach ...

Outside of AnimBP's, Animation Sequences with negative Rate Scales do not animate

Animation Sequences with negative Rate Scales do not play outside of using them in Animation Blueprints...unless they are looping. UPDATE: A negative rate scale value also breaks Anim Montages. ht ...

Duplicating meshes in blueprint improperly place transform widget and initially does not appear in viewport

If a mesh is duplicated within a blueprint components panel, it will be invisible in the viewport, the transform widget will incorrectly align itself and refrain from moving, and if the transform wi ...