Original post:
[quote=Karl G.]Anyone else lag a whole lot when they level?[/quote]
This bug is actually the same thing that's causing the really big lags in the server's response time. It's caused by writing your items to the database when you either (1) log out of the world or (2) level up. I'm working on a fix right now.
The little lag is something different, which I'll be covering next.