[RELEASED] Selectize dropdown

Hi there, I hope someone can give me some guidance. I did email @Thimo 13 days ago, but got no answer

I seem to be missing a step in how to get the value of the dropdown in a workflow.
I have a dropdown showing a list of categories from an option set

What I am trying to achieve is using the selected value from the dropdown to set a page state that the repeating group then filters by.

What I am confused by is how to retrieve that value (similar to the std dropdown - “dropdown x’s value”). Any option I choose from the list throws an error.