1. Navigate to WPML → Taxonomy Translation → Product Categories.
2. Check if all fields are properly filled in, including the Plural translation field.
3. If any fields are empty, please complete the missing translations.
Once done, please verify if the issue persists. Let me know how it goes.
Yes it seems both the 1 and 2 has been transated. But the the product categories in secondary language do not show up. This happens to any of other pages also. screen shot: hidden link