There is a bug going around that keeps a player from being able to play. When they log in they get a normal looking 'mission complete' screen, but they cannot click the OK button. That prevents them from getting into the rest of the game.
This bug has been reported in the UK forums here: http://forum.uk.bigb...uck/#entry12314
BeckyLynch says Playata support can fix the problem, so drop a ticket if you or any of your studio mates fall prey to this bug.
It is a little unclear where the bug should be reported for the Nutaku server. Watch the UK entry for further news!