I had the same issues than kallesnow and went back to the previous version. After reinstalling 3.1.16.0, my hud profiles are gone!

Now in the hm3 User files (in user/appdata/ etc.) there is "Layouts.hm3" and "Layouts.hm3.backup". I think they contain my hud profiles given the file sizes. But how do you restore them? They aren't *.hm3hud files...