GM Edward just posted a notice that the PSU servers will be undergoing a period of maintenance tonight starting at approximately 11:00p.m. PDT. Though no further details are given on the English site, the official Japanese 360 site was updated with a similar notice, citing a bug fix as the reason for the downtime. You can join in our discussion of this news at the forum.
Update: As of 2:00a.m. PDT, all servers are back online. With this maintenance, the Winter Mission Carnival missions were completely removed from the game.
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