Not that I am complaining... but I seem to have gone from being a long-term First Year to being a Third Year within the span of a month. That seems like a slightly random jump? I've earned 4 quills this school year, but never more than one in the years before, so I was definitely still a First Year when I did this year's classes. (When my status was changed to Second Year, I did not receive a log entry, but I did receive one for the shift to Third Year.)
Yes, in specific instances it seems that the graduation system has moved some students an extra year or two ahead of the year they're meant to be in. We're aware of this and are working on correcting the problem. It may take a bit of time, even a few days before it's done, but it will be fixed.