I've seen the same problem courteneyfish and have sent & submitted this problem every time it has occurred during a game and so have the others that were playing. It's a game client & a combined problem with their servers.
I guess we will just have to see if they can figure this out and maybe play from another computer outside of the company ones with a different account and IP, and see if happens to them and be able to fix it after that. Here is a short video showing what everyone that it has happen to is seeing.
http://youtu.be/bJbSIzHadYY