during 3v3 event 7/9, I fell into a bug where player could not move. When clicking into Training ground to try to dismiss 3v3, the window to join disappeared, but system messages still stated the arena was active. There was no way to manually open arena to dismiss 3v3, as the button was locked, and could not re-enter thru daily icon. It also blocked any invites and joining 8v8. Only way to repair this was a full refresh.