Do you possibly have your mobile connected (wired) when this happens?
Not that it might be related at all, but worth trying to find a pattern (if any). I’m on a Golf R 2017, mine since new, until my
Formentor arrives and from time to time the same happens to me while the mobile is wired during startup and I put it in reverse. I’m guessing here but maybe the infotainment system gets ”confused” sometimes. Show the camera or the Carplay on the screen...but 99% of the time it works as intended.
I know it’s a different and older system but it’s easily checked and might be helpful when describing the issue to the
dealer since it can be tricky finding out.