@Skillmon No idea. The problem has only arisen recently, and I've had this setup for a long time.

@AlanMunn if I'm correctly informed there was a biggish update to Dropbox recently, a fellow student told me to have problems with it, too (but not regarding links)

@Skillmon Ah, ok. That might explain things then. I certainly haven't done anything myself. I don't know for a fact that links has anything to do with it. But it's true that most of my repos are also linked via symbolic links inside my texmf folder which is itself on Dropbox.

@Skillmon I've delinked and relinked my Dropbox. We'll see if that fixes the problem.