Filtering with isotope using nested cms reference

Hey friends,

I’m a little bit out of my league here and looking for feedback/input.

I’ve used this wonderful page (https://dynamic-search.webflow.io/) as an inspiration to build my own community resource (https://covid513.webflow.io/shop-local/food-drink). All of the “filters” were working as expected until I started showing the “labels” with nested multi-reference fields instead of plain text fields. Does anyone know if it’s possible to achieve this?

Thanks!