Hello, thank you for your reply. First, version 7.0.9 is correct.
In addition, what I want to say is that in the woocommerce product search conditions, the default condition of your plug-in becomes [Without associated products], which is the priority option. Therefore, when we search for products, we need to manually adjust it to [Bought together] to fully search for all products.
Because the previous version does not have this problem, there will be no functional errors, but it will cause trouble in the use logic. Every time you search for a product, you must manually adjust it to the [Bought together] condition to fully search for all products that do not use your plug-in.
So I’m wondering if I can avoid this by changing the product search criteria to [Bought together] as the default selection