Did you get a route before? If so go to the route properties and select 'recalculate'.
Yes, that worked fine before -- I tried several (new) waypoints and recalculated many times, also inverted the route, but calculating takes 1 sec and the result is a straight line...
Sounds to me like your active map is not a "City Navigator" but a base map in your device. (My 5 cents worth....)