[Resuelto] Woocommerce products missing variation picker

Background of the issue:
I am trying to translate the variation picker on the single product page of my WooCommerce site using WPML. On the non-translated site, I can pick clothes sizes, but on the English version, the size table is empty.

Symptoms:
Missing variations on the single product page in the translated (English) version.

Questions:
Why are the variations missing on the translated single product page?
How can I ensure that the variation picker works correctly on the translated page?