My MacBook is about out of storage so I got a 1T external drive. I've been trying to move the Dropbox sync location to the external drive and it won't work. At first it was because the Mac backup was to the same external drive but I turned that off. Now I still get the error "Error with Selected Folder: Backup no supported on a different drive. Diable Mac Bcuop before moving Dropbox to a different drive"