Music playlist management in Emby

[Aldursil 16]

What's the best way to manage musical playlists in Emby?

I recently moved my Emby server to a new machine and all my musical playlists that I spent hours and hours creating are now empty. I thought the backup and restore would have prevented this. Is there any way to get them back?

The icons and playlists themselves are present but they have no songs  listed.

Edited 53 minutes ago by Aldursil