I have the same problem (on Mac) where half of my CDLC won't load. Different songs will load each time, some more frequently than others. Tried lots of suggestions from different threads (looking for conflicts/bad songs, re-converting songs, changing song IDs, copying songs a handful at a time, waiting before opening the song list etc), but nothing helped. Until I found this thread. Dave101's workaround worked perfectly: exit to the white title page and re-enter. I wonder if there is a proper solution though...