Not Able to select Product attribution

Dear Team,

Greetings for the day, I recently purchased your plugin and i am facing an issue with it, the plugin is really awesome, but its not allowing me to select the product attributes in all the cross-sell, up-sell products.
For example we have few products which has two attributes to choose, 1st is Gender 2nd one is Size. So if i choose size i am not able to change the gender and if i change gender first the size attribution is not changing, also for the 3 product of cross sell – attributes are not showing. its happening with all the products not limited to specific category or specific tag.

if I use default woocommerce upsell and cross sell everything works completely fine. but with this plugin i am facing the above issue.