In my Music folder in Libraries I have a folder called "Classical" and one called "Pop-Jazz" (among others). I copied both to my Skydrive folder, but it will only sync "Classical", not "Pop-Jazz". In Settings, if I select "choose which folders to sync", "Pop-Jazz" does not even appear in the list. All the properties of the two folders are identical (sharing, permissions, etc.) Why can't Skydrive see the other folder?