Hello @matador9
Thank you for choosing our plugin.
We apologize for the inconvenience.
Maybe your filtering plugins are using the wc_get_product_ids_on_sale function to get onsale products and unfortunately, WooCommerce doesn’t have a filter for the function yet.
If your filtering plugins have a filters then you can use the get_discounted_products method at the below file.
wp-content\plugins\easy-woocommerce-discounts-pro\includes\class-wccs-products.php
Code example:
$discounted_products = WCCS()->products->get_discounted_products();You can contact your filtering plugins support for how to use it instead of wc_get_product_ids_on_sale
Or you can consider to use the discounted products shortcode to show onsale products in a page. This shortcode is available in the pro version of the plugin.
I hope it helps.
Best Regards