I remember this sort of thing happening to me when I was at UVA. That’s the problem with having so many students and only so many courses to offer. I’d suggest that your daughter email some of the profs teaching those classes now and explaining the situation about graduation. I rarely found myself unable to get into a class that had been full because of the movement on the first and second day. Provided they don’t go past seating capacity a lot of profs will understand and add extra students on to the class if they can. This certainly isn’t an unknown at midsize to large schools like UVA so I’m sure at least one or two will understand.