I have a course with three separate quiz slides. I've set them up to be single question only with no results pages, since they are just knowledge checks and not proper quizzes. In the slide properties for each quiz slide I've set the prev button to branch to the slide before, instead of last slide viewed. However when I publish and test this functionality the prev button still goes to the last page viewed. This only happens on the quiz slides, the backward advancing branching I've set up on every other slide in the PowerPoint functions correctly.