In your (device / phone) map you may notice a city or district in the wrong position and / or moving around the map as you move or move.
This happens when a few streets distant, are labeled with the same city name. Usually occurs when an area is first mapped. Occasionally the longest paths assigned the name of the nearest town.
Once a number of streets are assigned with the name of the location city name will appear in the center of the polygon that encompasses all those streets and correct this problem.