I looked at it, and "Score" is updated normally in both game maps and mods. "Personal Best", yes, is not updated immediately, but this looks more like intentional behavior. Of course, I can make "Personal Best" updated immediately, it’s not difficult. But then the animation of increasing "Score" loses all meaning, since "Personal Best" will immediately display the final value of "Score"...
I don’t want to add my own logic/animations/etc, because the point of my build is not to add new features, but to quickly fix annoying bugs.
It doesn't work in 3.x at the moment, the "Modifiers" button in "Extras" is just a placeholder, just like the modifiers in the store. All that remains is to wait for Komdog to port this functionality from 2.9.