Can’t filter on products

Hi Support,
I have installed WooCommerce Product Builder Premium but if I try to select a product in a step it switches back to categories without selecting the products. I do see the filtered products for a short period of time and if I am fast enough I can click it but then it switches back to “Categories” and the product I selected is not there anymore

When I select “product” I do see a list of products I can select but this is only a limited amount of products (I think the last imported/added products of page 1 in the product overview)

I tried to deactivate the plugin and reactivate it again but this makes no difference.