Variant options in product box is not working

I have a product box that has a combined variant dropdown menu that is not working on a landing page. The default variant isn’t showing up and when I click on it from mobile it says there are “no options”. But if I click the add to cart button the default variant of the product is added to cart. I’ve also tried recreating the product box and I can’t choose a product for the product box.

Hey @higuchis, can you share the Builder entry link? I’d be happy to take a look!