Crossfire Bug

Hello! And I have been experiencing this bug for such a long time. So I decided to fraps it up.
And also this is my first time posting the thread so I kind of don't know about the community.

http://www.youtube.com/watch?v=ZVJIeh61HJE

This bug happened when I jumped from the high buildings, I reached the floor, didn't lose hp and I got stuck, I fly for 3 minutes and I got disconnected from the room. And 1 more thing, my English is not good so don't complain about my English