We’ve identified and fixed the bug, and all the missing courses seem to be in the BUSIPlus system now. Sorry for any trouble this may have caused. The bug seems to have been limited at this point to courses offered by the Biology department (including Biochemistry). Please let us know if you find anything missing, though we believe this fix should have covered them all.
We’ve just been informed (thanks, Chris) that there are a couple of classes missing from our database. Specifically, the ones identified are BIOL 224, BIOL 331, BIOL 351, and BIOL 376, though there could be more missing. We will be working on this ASAP to resolve the issue. In the meantime, if you see any other classes missing from BUSIPlus, please let us know as soon as you can. We will post an update when we fix the problem. Sorry for any inconvenience in the meantime.