Yesterday I attempted to switch between 3-4 offline map sources which have worked well in the past. The phone slowed down considerably, and I got the same error "Map blah database problem!" in red, but I couldn't record the exact error problem.
It did this 3-4 times, but after selecting that map again, it corrected , after I rebooted the phone. Thankfully, my track recording wasn't effected by this as I was stationary at the time.
Is there a log I can send you about the problem, or a known way to fix the error in the future ?
thanks :D