Does she use custom content- specifically hair and clothes? My sister had an issue where she downloaded CC but it wouldn't show up in her game. When I fixed her game by deleting the ghosts, the CC showed up. The only reason for this problem- that I can think of- is that by deleting the ghosts, custom content (that was not showing up due to the 533 error and/or lone ghosts) became 'activated' when she deleted the ghosts. So now, she may have custom hair without meshes (which show up as bald in game) and clothing popping up suddenly in game. To check this, I suggest going into CAS and seeing if there are any CC hairs without meshes aka ones that are bald. If there are mesh-less hairs, delete them from the CC folder.
I hope this helps, and that it isn't too confusing!