Hi, okay for the ones it could load I think it is because you have enabled Rename filename part only
So in your case this means that although you have set rename mask
AlbumArtistorArtist/Album/DiscIfMultiDisc/AlbumArtistorArtist - Album - Track - Title
Its only going to do the AlbumArtistorArtist - Album - Track - Title part, it will not change folder structure, it will only change the filename within existing folder.