Unreal Engine Issues

Cannot save actor after actor component modification, Graph is linked to private object(s) in an external package

Cannot save actor after actor component modification. The user gets the error Graph is linked to private object(s) in an external package ...

Actor with Camera Component UProperty causes ensure when PIE ends if replicating

If an Actor with a CameraComponent is set to replicate, ending a PIE session with 2 players will result in an ensure ...

Particle record in the Matinee leads to crash when playing after record.

Particle record feature in the matinee seems not properly working in the Editor. When trying to play in the matinee with recorded keys, the Engine will crash with Access violation - code c0000005. ...

Vray Material nodes are disconnected after saved if closing and re opening Unreal

Client crashes after second seamless travel when a blueprint manually placed in the world spawns a replicated actor

When a user loads into a level that spawns replicated actors using manually placed blueprints twice using ServerTravel with Seamless Travel enabled it will crash. It looks like the engine can't find ...

With Ray Tracing Enabled And The RenderDoc Plugin Enabled Shadows Don't Render Correctly On Reflective Materials

When the RenderDoc plugin is installed with raytracing enabled shadows don't render correctly. Found in 4.24.1 CL#10757647 Reproduced in 4.23.1 CL#9631420, 4.25 Main CL#11087956 ...

[Soundfield Submix][Crash] - Unreal Ambisonics Crashes on Packaged Game and in Standalone

Issue was reported by a user on the Unreal Engine forms. I tried to package the game with the other encoding options and this appears specific to using the Unreal Ambisonics option.  I have only co ...

Motion vectors not generating correctly in build

Also tried using “show VisualizeTemporalUpscaler” and noticed the frames that have missing motion vector data showed up as pops in the “show VisualizeReprojection” part of the visualizer. ...

Using "Change Class" on Spawnables, Possessable references retain old Class info

Changing Class for Spawnable objects in Level Sequence did not have any impact on Possesable objects in Subsequence. It's still referencing the previous Class. Also found in Release-5.4, CL: 329753 ...

Water tiles flicker in and out of visibility with instanced stereo enabled.

Water tiles flicker in and out of visibility when playing in VR with instanced stereo enabled. Requires instanced stereo rendering to be enabled (does not require forward shading to be enabled) Must ...