I was using filters in sidebar (BASEL – Woocommerce Layered Nav widgets). It worked, but some time ago I noticed they stopped working (did not filter the products). I disabled them. Today I tried to find out, why they dont work and found out no filters (BASEL – Woocommerce Layered Nav widget, Woocommerce native layered nav widgets, YITH AJAX filter) work for me with your theme (i also checked the parent theme without my changes). However, price filters including BASEL – price filter do work. When I switch to another theme, filters do work (of course there is not the BASEL – Woocommerce Layered Nav widgets, but other filters work). Thank you for your help.