Hello,
Thank you for contacting Rank Math support, and sorry for the unexpected delays and any inconvenience that might have been caused due to that.
It seems that your sitemap is generated by other plugins. Can you please confirm if you have any other plugin that supports the generation of sitemap?
Also, please head over to your website directory via FTP and check if there are any .XML files there. If you found any, please remove them.
After doing so, follow the steps below:
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/
Let us know how that goes.
Looking forward to helping you on this one,
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.