[Закрытые] Coupon applies to specific category but works only in English, not Arabic (WPML + WooCommerce)

Background of the issue:
I am trying to use a WooCommerce coupon that applies only to one specific category. In English, the coupon applies successfully to all products in that category. In Arabic, the coupon shows an error. Both the product and category are properly translated and linked in WPML. Link to a page where the issue can be seen: скрытая ссылка

Symptoms:
The coupon only applies to English products. When switching to Arabic, the coupon fails even though the product is the translation of the same English product. The error message displayed is: 'Sorry, the coupon does not apply to the selected products.'

Questions:
Why does the coupon not apply to the Arabic translated products?
How can I ensure the coupon works for both English and Arabic categories?