Fix WooCommerce Category Display

I need your help restoring the normal WooCommerce flow on my WordPress store (Hostinger hosting, Zanna theme, Elementor builder). Right now every product I assign to a child category shows up only on its parent page; the dedicated child-category archive stays stubbornly empty unless I drop products in by hand with Elementor.

Setup details you’ll be troubleshooting:
• WooCommerce core
• Product Categories Designs for WooCommerce (the plugin I currently use to style archives)
• Elementor (used for a few manual product grids)

What’s going wrong
– Child-category archive pages return “No products found” even though the items are correctly assigned in the back-end.
– Because of this I’m forced to embed products manually, breaking the automated catalogue logic and wasting time.

What I’m after
1. Identify and remove whatever is blocking WooCommerce from pulling products into their child categories (template override, taxonomy query, plugin conflict, cache—whatever it turns out to be).
2. Make sure parent and child archives both load products automatically, using the normal URL structure.
3. Leave Elementor layouts untouched except where a fix requires a small tweak; I only want the native category pages working again.

Once the categories display as expected, please document what you changed so I can maintain the setup going forward. If you’ve seen similar conflicts with Product Categories Designs for WooCommerce, mention that right away—it may speed things up.