[JohnnyChimpo]

The problem still persists, if your reading this and own a server, i suggest you take a look into the problem yourself it seems like i am not alone.

Testing the problem:
1. Open /te and put down a tile.
2. Goto File->Update Level.
3. Update the level on your player account by saying "update level"
4. Does the tile stay? Did you get a message after you went to File->Update Level?

If you are having the same problem it could be because of a recent update by Stefan, earlier this week. Please post and let me know.