MMA Playlist transfer

[oreo]

Hi there.

Just got a new phone. Playlists and music were stored on SD card on my old phone. At first I tried just putting the SD card in the new phone (no formatting). Music all came back and some playlists showed but showed empty. Then I tried a format and re-copy. Same thing. I deleted the empty playlists, but MM is not picking anything up and they are all visible in my SD Playlist folder. Both m3u and m3u8 files. I can open the m3u with MMA but it says missing codec.

Is there any way to transfer this? I don't have these playlists on my MMW. Thanks!