Unreal Engine Issues

Possessing and Unpossessing a Pawn when using NetCulling causes the Client to lock up

In this test bench, they are using a APawn with a custom replicated Movement Component rather than using a ACharacter and they are getting a different result that ends up in a permanent softlock of ...

Crash when entering Path Tracing view mode if r.Decal.NormalReprojectionEnabled true

Cash when entering Path Tracing view mode if r.Decal.NormalReprojectionEnabled true The licensee has reported: This crash happens because the DeferredShadingRenderer tries to extract the normal GBu ...

Disabling LQ lightmaps causes crash on mobile preview

Memory leak in Test build when moving ISM with UpdateInstanceTransform

This leak occurs in Test builds, but not in Development builds. Updating InstancedStaticMesh with UpdateInstancedTransform every frame causes a memory leak. This screenshot was taken using Mempr ...

Bridge plugin causing crash when right-clicking content browser on Mac

Right clicking in the content browser causes a crash with the Quixel Bridge plugin enabled.  This issue is occurring in Binary //UE5/Release-5.2-Preview-2 @ CL 24887336 This issue is not occurring ...

'Quit Editor' Blueprint Node Crashes Editor

Using the Quit Editor blueprint node crashes the editor when used, instead of exiting cleanly. Closing the Content Browser prevents the crash from occurring, however. ...

When having two viewport panes open in editor, and piloting/unpiloting a camera actor in one pane, will cause the other pane to reset viewport camera orientation.

Piloting and "Un-piloting" a camera Actor in viewport pane causes other viewport panes to reset its view orientation upon "Un-piloting" of Camera Actor. ...

Linked Anim Graph in Post Process Anim BP does NOT work after remove ControlRig Track

After remove control rig track from the skeletal mesh, Linked Anim Graph in Post Process Anim BP of the SK Mesh does NOT work. This issue can be fixed by the following code.// add #include "Anima ...

Niagara Regression - Looping particle with Spawn Burst Instantaneous on time 0.0 flickers for a frame between loops

Note: This worked correctly up to UE 5.4, but repros from UE 5.5 up to mainline latest. If a Niagara Emitter is set up with "Spawn Burst Instantaneous" on time 0.0, and the spawned particle(s) have ...

Animation Constraint Jitter in Sequence when Constraining Layered Control Rig node

When using constraints with layered control rigs, you get jitter on the constrained object. ...