Hello,
Thank you for contacting Rank Math and bringing your concern to our attention.
Could you please confirm if you’re using a translation plugin on your site?
Rank Math usually only handles adding the default language to your sitemap. Other languages are handled automatically by the translation plugin you use by adding a hreflang into each page automatically so that Google knows that it is a translated version of some other page.
It is not a must that you have the translated pages in your sitemap. Please note this is perfectly fine and as per guidelines set by Google:
https://developers.google.com/search/docs/advanced/crawling/localized-versions
I hope that helps.
Thank you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.