I have just deactivated vacation mode.
 
All my games then showed up with the status "On vacation", as if my opponent is on vacation, and with a time left of 2d 6h (1h more than what is displayed as my remaining vacation time). Probably a consequence of this bug, when I submit a move in one of these games, instead of going on to the next one it takes me back to "smjg's Correspondence Games".
 
They should appear as "Your move" or "Waiting" as appropriate, and with an appropriate time left figure. The way it is at the moment, it looks as though my opponents are on vacation, which could be disastrous if the user doesn't go into each game and double-check.

Currently the "On vacation" status is updated every hour on the hour. So if you go off vacation, the games will still show a status of being on vacation until they are reset within one hour. Note that this is only a status notification problem--you should still be able to access your games and make moves immediately. We are aware of this issue and hope to make it more clear in a future upgrade.