Results in points instead percent

Hello

So I made my first quiz, everything worked fine but I wanted to receive the score by points instead of percentage, i.e. 30/50.

I went into result settings -> calculate the score -> by weight/points, but once completed, my score would always show 0. In addition to that, correct answers would not show up in the e-mail if left on weight/points.

One more question. I have intervals set (by points) in the result settings. So lets say someone score 0-10 they get F, 10-20 – D, etc. When a user finishes the quiz, it shows the their interval. However, I did set the score to be hidden from user, so it comes only to me, but I can’t see their interval score – is that intended?

Thanks