Quiz Results always show 0% and don't reset

Thanks!  I am trying to republish someone else's course after making one minor edit to the text on two slides, so I'm not sure how it was built.  And it's been years since I used Storyline and did not previously use quizzes so...

I'll try to figure out where to find the quiz settings and how to create a results slide.

Hopefully those will together resolve the issue, though I can't understand why it worked last year and isn't working now.  :-)

Thanks!