Did a 70 miler at the weekend. Latest released firmware. No reboots, but half way through the ride, the map disappeared. Turn by turn pop ups still worked which showed the map, but If I toggled to display map all the time I got a blank screen with END at the top of screen.
It was only when I stopped and paused the ride and resumed that the map started to work normally.
not seen this reported by anyone else yet?