So I had been using the next-to-latest release up until recently without any issues. Thought maybe the dropped information issue had gone away, but it appears that it has not. Every single starred album or song on my logins is missing suddenly, and all of my created playlists are gone as well. I upgraded to the latest stable release as of today, no change.
This is really irritating to save and bookmark songs and create playlists if this software cannot keep track of those changes. I made absolutely no changes to the system running Subsonic (it's on a VM) prior to this happening, so I know now with 100% certainty that after a certain point in time, Subsonic just decides to give up on everything I've saved. I'm so tired of repeatedly doing this and coming here to post about it only to hear crickets. Stay away from Subsonic I suppose. I'll try other software from here on out.