Importing iTunes playlists

I am running Roon on my Windows 10 PC with iTunes music stored on a NAS drive. Previously Roon had found all my iTunes playlists when I placed my iTunes Library files (.itl & XML and the rest) in my Music/iTunes/iTunes Media/Music folder. I had Roon off for a week while I was traveling and when I started Roon again on my return all the playlists had vanished. Roon can find m3u playlists that are in the same directory. Roon seems to be perpetually rescanning that folder and importing all files, including one that I added yesterday. But no playlists. Puzzling (and frustrating) as it was working before

A post was merged into an existing topic: Playlists have Disappeared