Hello Amallie,
Happy to help!
I tested your project file and saw that your progress indicator relied on the custom variable SlideNumber to function. Note that we have a built-in variable called Menu.SlideNumber which you might want to test to see if you can use it in your course.
Checking your slides, I saw that the SlideNumber variable wasn't populating any values (I added variable references so I could see the current values assigned to the variables).
Further investigation revealed that you do not have enough triggers in place that modify the value of the SlideNumber variable. Only slides 7.1, 7.2, and 8.1 have triggers that modify the value.
Please review your triggers that change the appearance of the progress indicator, specifically the values being assigned to the SlideNumber variable. Hope this points you in the right direction!
