There is a method by which you skip the login and bring up the world list for the server. I've seen that list be goofed up and instead of my current and only city on Khelonaar being "active" some other world is instead. A note to support fixed the problem.
Another idea is that your login is defaulting to Aryndyll and you actual city is listed out of the display space. Not sure if you can scroll to it or not. In fact, I think that was a problem reported years ago that they fixed.
Well, I guess these comments are probably not too useful. LOL.
In the end I think ed1960 is probably right. You may have logged into the wrong server and simply, out of habit, selected the first world -- and started a new city by accident.
AJ