I administered a quiz on Canvas and my students completed it. I went through and graded the quizzes and everything looked good.
However, I wanted the quiz to be extra credit, so I was trying to figure out how to make it be out of 0 points. I read that I could do this by converting the assignment to be a "graded survey" worth 0 points. I did that, but it didn't work. The points I had awarded my students were no longer part of their point totals in the gradebook. So I changed it back - it is now a "graded quiz" again. However, the points aren't part of my students point totals and when I try to look at the quizzes in the speed grader, it says "This student's responses are hidden because this assignment is anonymous."
What went wrong? How do I fix this? I never selected any option that should make the assignment anonymous. It's unmuted in the gradebook.