Hello,
You are using incorrect short code on the wishlist page. The correct short code to display the wishlist items is "[woodmart_wishlist]"
but your are using this one: "[yith_wcwl_wishlist]"
That’s why your wishlist page not displaying any of the products. You can check the below screenshots that after pasting the correct short code it works perfectly fine.
Screenshot for backend wishlist page: https://jmp.sh/CxgNurO
Wishlist page front view: https://jmp.sh/d1eTnrJ
You can hide the other wishlist button by disabling the “YITH WooCommerce Wishlist” plugin.
Best Regards.