I had some issues with multiboxing, I wanted to level my own main plus an alt and my husbands (while he's at work). I didn't initially figure out that it was because I had multiple instances of wow running. Basically if I log on 2 or 3 wow.exe I have display issues such as missing buildings, objects floating in the air, and invisible barriers in my path making it impossible to multibox. I then tried logging into one character and had the same issue until I cleared WDB and relogged again. I tried all those steps twice to be sure and it turned out the same way even on another server. Is this something that can be fixed? I'd never seen this problem before so I don't know if this is a server thing or something is wrong with my game files.