m4rw4n

they have a free version here https://ww.wp.xz.cn/plugins/advanced-dynamic-pricing-for-woocommerce/

The problem seems to occur with the plugin Advanced Dynamic Pricing for WooCommerce (Pro)

when both flying pages and ADP are enabled, sometimes adding products to the cart doesn’t work well. it either doesn’t add them, or it add them but then some products go away in cart or checkout page.

Here’s the link for my staging site: https://rv417pe5yr-staging.wpdns.site/

Here’s a video: https://www.awesomescreenshot.com/video/22283052?key=78e43e2575ccafc3654710261923f4c5

only if i disable either flying pages or ADP the problem goes away.