Backup Camera Blank Intermittently since Nov NAVIGATION Update

OK, this has happened several times now since that latest NAV update a month+ ago. After I start the car, I put it in Reverse, the screen is totally BLANK. I put it in drive, the screen comes back. I put it back in reverse - the Backup camera will either remain BLANK or will be "blinking" on the LEFT Panel on the screen.

Anyone else seeing this? I'm going to report this on the MAPS site as an issue.

Update - 12-2020 NAM.13.47.50.610.201