I think it is system wide. I'm on a different server and the activity log is as of a 7/30. This has happened several times before and they eventually get it fixed. Just hang in there.
It's been over a month and counting since Brandywine character levels have been appropriately updating. There are a few threads and a lot of people posting but nobody capable of doing anything is giving us the light of day. I've experienced this in the past and it used to be fixed pretty quickly so I dunno what is different this time.
There was even a server restart for Brandywine, and Vilya (when it was mentioned those two, plus withywindle(sp?) were all unresponsive) but no reason for the restart, and no character sync restoration result.