When I add a song to the current playlist through the external storage menu (selected from browse/main menu), it plays when i select it in the playlist and has album art, but the seek bar doesn't work, and the title, artist, and album aren't listed, but only the filename instead.

If i select the song from the same place i used to add it to the playlist it looks/works perfectly fine though.

Im fairly certain all the files i tried are flac as those are the only types i have on my sd card, and this is on a Samsung galaxy note edge