Old thread, but I know why the artwork aren’t appearing. It is because iTunes’ native file format is MP4/M4A. iXpand recognizes this format for playing, but it does not recognize the XMP metadata format, necessary for MP4/M4A.
MP3s and such use ID3, which from my understanding is the only metadata format recognized by iXpand.
It would be nice if iXpand recognizes XMP. It really isn’t that hard to do.
