Bug: Ratings are reset when clicking on a song

[pstein]

Since the newest AIMP update there seems to be a bug.

When I re-open AIMP (with loaded Playlist) and click on a song the star-Rating is reset (vanishing).

AIMP seems to forget the previous Rating as soon as I play it again the first time.

Whats wrong?

After all previous AIMP updates this didn't happen

In which file exactly are the ratings saved?
I have backups which I can restore...