Not sure, this the third time I have seen this today. I was in the lobby and randomly rooms with 000 pop out of no where.
(http://i61.tinypic.com/9rrvyu.png)
yeah it happens a lot, just relog to make it go away I think
this has been around for a while and I don't know of any plans to fix it
It's also VERY annoying because it lags you alot for 10 secs