AR Foundation "Camera Rainbow Disorder" on ARSession.Reset()

Hello there!

I have a problem, when resetting the ARSession. I get a "rainbow disorder" w$$anonymous$$ch maybe has somet$$anonymous$$ng to do with the camera texture, because you cant see it, if there is some GUI above.

Do you guys may know how to avoid t$$anonymous$$s? I attached one image, so you can get a better idea about the problem.

It always appears when calling arSession.Reset(), or sometimes when reopen the Application and you´re in the active Session Screen.

Every suggestion would be Great - Thank you very much!