I just unlocked the Gunner class and whenever I'm running around the lobby my palette and subpalete will just disappear at random as if I had hit the T key to bring up the mouse cursor.
The only way for me to get my hotbar back is to log out and log back in, it's really annoying!

Has anyone else had this happen? I don't think I can play gunner if this keeps up...

EDIT: I should note that this happens to my friend too, who just recently unlocked the Fighter class.