In this thread there are users who have left the nav connected via a USB (not in the cradle) and still the screen changes.
I've now had 5 nav 6's suffer the same issue, pretty sure Garmin wouldn't replace if the causative issue was with the bike.
Bods have all sorts of problems for various reasons. There are reports that bods can’t charge their devices via its USB and can’t get their device to connect to their computer.
No, but they’ll address the problem with the bike, under warranty.