Hi Luli,

I'm not sure what's happened with your uploads for so many to be missing but most likely a drop in connection during the upload.

If you really only want/need a few specific playlists, my advice is to select all tracks inside a playlist and right-click, then Upload Tracks. MIXO won't duplicate them, it will just upload missing tracks.

You could also do this for All Tracks (select them all using the top checkbox) but bear in mind it will take longer to build the upload queue and upload them all.

Let me know how you get on and if you need any further help.

Good luck!

Remko