MT song playback ok, playlist not ok

I might be talking to myself here, but I’ll carry on anyway…

If I select a playlist on the LP-16, each song shows a length of 0:00 as I said before. But if I press the folder contents button and select a song to insert, that song WILL play properly. It’s just songs that are part of the exported playlist that won’t play. Pleeeaaaase can anyone help?!