I paid for Subsonic Premium before the subscription model change etc but even after upgrading to version 4.9 (build 3853 – 23 January 2014) playlists are disappearing on their own

I have manually exported some of my playlists to a separate folder to the "Import playlists from" folder I added within settings and tried various other things but most days I look at my playlists and the names are there but they all have 0 songs again.
Thanks for any help you can give me!
BTW I tried searching the forum for the keyword playlist but apprently it's too commone (WTF?) so the search function doesn't work.