Thanks Eric. This helped me too. I had used an old course/template to create a new one and when I got to the Results slide I was missing a few things and had a few not working.
1 - I had to ensure the quiz was tracking/scoring the correct "new" questions
2 - I had to ensure my triggers were using the new quiz variables. To help with this I renamed the quiz (on the results slide, design, quiz settings, name.... the name here copies over to the built-in variable so it was easier to locate instead of results.scorepercent and results1.scorepercent. My new quiz name "final_quiz" came up in the variables list as final_quiz.scorepercent.)
3 - I had variables inserted on my slide "here is the score you got" and they were pointing to the old (template's) results.scorepercent instead of the new quiz (final_quiz.scorepercent) I had just created.
(hope that makes sense)