Responsive products not displaying correctly

Topic 5 months ago: https://www.ads-software.com/support/topic/responsive-shop-page-product-display-isse?replies=2

Hello, I am having this same issue on a new site. All plugins are up to date. The products under catalog are not showing as responsive 3 down to 1 for proper mobile viewing. All other pages show correctly (categories and single products). Any thoughts?

https://rainbowdragon.net/product-category/coloring-books/

Tank you!
Teri