OK, noticed another thing this morning. I think subconsciously I'd seen this before, but didn't register it as a bug in my mind. 1. If the rear camera is in the upper half of the screen, and you adjust your seat/mirror/steering wheel position so the driver profile update overlay appears, the video image disappears and is replaced by a gray box until the driver profile menu is dismissed. 2. If the rear camera is visible and you go to drag an app icon to one of the two screen positions (or just tap and hold), the video image disappears and is replaced by a gray box. Reporting to ownership right now.