Problem: The client was facing an issue where the taxonomy filter on their Elementor Pro website was not displaying English categories on the English version of the product page, although it worked correctly in Dutch. The client suspected this might be related to changes made while the website was in 'coming soon' mode. Solution: We recommended the client to ensure all WPML plugins were up to date by visiting WPML plugins update page. After updating, the taxonomy filter functioned correctly in both languages. It appears that the issue was resolved following updates and possibly due to the website exiting the 'coming soon' mode.
If this solution does not resolve your issue, or if it seems outdated or irrelevant to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. Should you need further assistance, please do not hesitate to open a new support ticket at WPML support forum.