Missing product attributes

I have several woocommerce site running on a different hosting. Usually, when I add a product with attributes, attributes will show up under products>Attributes. This isn’t the case under my new shop. Attributes are still showing on my single product page. When I go to edit product, I can also see them under the attributes field and variation field. Surprisingly, it is not showing up under products>attributes.

I am trying to resolve this issue by going to woocommerce>status>tools>Regenerate the product attributes lookup table

It doesn’t look like the it is regenerating anything. There are only 5 products in shop.

I also manually added the attributes color and size without configuring any terms. Still cannot regenerate the product attributes lookup table.