Background strange mirroring effect

[Ill-Fish]

Hi, I have a scene inside a spaceship. At one position I have a window and since today I have the problem, that the background (Skybox) has a strange mirroring effect.

I’m using Unity 2023.2.20f1 with a camera and Cinemashine Virtual Camera. If I check the same position from scene view everything is fine. If I’m in game view I see this doubling effect.

Everthing was fine for month and now I have this effect, but no idea what I could have changed to case this.

Any idea for the reason? I guess it’s somehow a camera setting problem.

Scene view:

Game view:

To rule out the wall element as a reason, I have deactivated it.

Thanks in advance
Frank

[Ill-Fish]

Ok, found the answer on my own. In my camera setting the environment background type was set to uninitialized. I set it back to skybox and the problem was fixed.