I've downloaded today May map update and what I see - it is next time (there were couple of such updates...) when fragment of ring route around Kraków which is still under construction (and will be for at least next year) is marked as opened - and of course app is routing through this not ready yet road. What is interesting - in MapShare portal, in AmiGo this route is properly marked as under construction thus TomTom knows about it. I'm starting to worry about using TTGo in unknown area...