Problem: You are trying to get the sitemaps working for all languages on your website using the WPML SEO plugin and Yoast Premium. However, sitemaps are only working for the primary language and not for other languages. Solution: We recommend checking if you are using different language domains, as this functionality is primarily available in such setups. You can find more details on this in our documentation: Using WordPress SEO with WPML. Please note that sitemap generation is managed by Yoast, not by us. If you need separate sitemaps for each language and are not using different domains, you might need to implement a custom solution, as this falls outside the standard behavior.
If this solution does not apply to your case, or if it seems outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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. If you still need assistance, please open a new support ticket at our support forum.
