Variables Triggered by Button

I'm currently building a prototype for a course and I want some variables to change when the user clicks the next button. I've set up the variables so that they are triggered before the user advances to the next slide, but the variables are not changing. Instead the course just advances to the next slide. The buttons with triggers are on slides 2.2, 3.2, 4.2, and 5.2. I've included a text box with the variable references on those slides as well as the title slide.

I've used a similar approach in other projects and have not had this issue. Any ideas on why it is not working?

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