Hello,
Thank you for contacting Rank Math, and sorry for any inconvenience caused.
Can you please share the sitemap URL with us?
You can also follow these steps and see if that helps:
1. Flush the Sitemap cache by following this video screencast:
https://i.rankmath.com/pipRDp
2. Exclude the Sitemap files of the Rank Math plugin in your caching plugin. The cache could be via a plugin or from the server. For plugins or Cloudflare, please follow this article:
https://rankmath.com/kb/exclude-sitemaps-from-caching/
3. Remove all the sitemaps from Search Console, clear your website cache and resubmit the sitemap_index.xml
Hope this helps.
We look forward to helping 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.