This thread is resolved. Here is a description of the problem and solution.
Problem: I am trying to display a translated category in the front end for english and french.
Solution: Just translate again the products from the missing categories and everything will go back to normal.
Relevant Documentation: https://wpml.org/documentation/related-projects/woocommerce-multilingual/#translating-product-categories-tags-attributes-and-custom-taxonomies https://wpml.org/forums/topic/my-shop-doesnt-a-category/#post-4974263
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