Thanks for getting in touch with us.
You must add all the sitemap file locations to the exclusion list in your Cache plugin so that the sitemaps are never cached. These are the files you must add to the exclusion list:
sitemap_index.xml
post-sitemap.xml
page-sitemap.xml
category-sitemap.xml
product-sitemap.xml
This is required since Sitemaps are already cached internally by Rank Math and we flush them everytime you post something new and with our cache – you won’t see the issue you are seeing in Google.
Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.
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.
