I've found that recently, when playing lockdown, the game randomly kicks you out to the SK log in screen, almost as if you got a temporary ban. This has happened 4 times in the past week, and I have no idea what causes it

The result is that it leaves ghost LD matches that don't exist in the queue, and generally annoys all who it happens to. From talking to people, it doesn't just happen to one person, but everyone in the entire match it seems. It is quite annoying having to relog in every time it happens, and also getting that mini heart attack when you think you got a ban.