Playlists Show Song Count and Total Time , Now Empty

[seedoubleyou]

I have put substantial work into building several different playlists that, up until now were working quite well. Unfortunately I have now discovered that their contents are now all empty, regardless of the accurate song count and duration listed on the main 'playlists' page in my Subsonic 6.0 instance. While a general Internet search indicates this may be caused by a loss of connectivity to a media folder, I struggle to understand what has happened.

Please help me recover the work I've done.

Subsonic 6.0 on Ubuntu

[toolman]

Can you find anything in the logfiles?
Are your mediafolders local on the machine that's running Subsonic or are they on a network drive?
Did you recently rename or move folders or change permissions on them?
Do you as Subsonic user still have acces to all media folders? ( Check Settings >> Users >> Allow access to these media folders )
Do you have backups of the database?