Sorry for the inconvenience, this would be an NPC bug not a map bug. It may just be something wrong with your client. Did you try restarting or redownloading the client?
Okay, this is normal for android users since it requires a mouse to hover over the cities on the mini-map. Sorry for the inconvenience, but this is not considered a mapping bug. Hopefully this answers your question though.
sorry for your inconvenience. This is not a map bug. I assume it's resolved now, but if it happens again try the steps mentioned above. These include: using an escape rope, losing to another player in a battle, reloging, etc..