Can you go to Settings > Library > Clean Up Library and take a screenshot of the Window that pops up? Don’t fully run this process, I just want to see the numbers appearing here. Thanks!
Things look good there, there aren’t any files associated with missing storage locations.
Can you share a screenshot of what you’re seeing under playlists? Were they perhaps created under a different profile? Do you have other profiles in your Roon account?
If your playlists are not there, they either cant be found in your Roon database on that account (nothing in the cloud, all on your machine), or the files are inaccessible.
Can you see Albums and those tracks from the playlist in your library?
Did you change anything about your Roon setup recently? Changing machines, accounts, etc…?
I’m not sure I know how to answer that questions. The playlist had over 200 items in it, and I don’t remember what they were. If I could, I would recreate it in some other venue and be done with this problem. The playlist referred to a huge variety of albums, some of mine and probably some of yours.