Hello,
Thanks for contacting us and sorry for any inconvenience that might have been caused due to that.
I can check that your sitemap is working fine:

Please clear the cache of your site and check again.
Let us know if the issue persists on your end.
We are here to assist.
ok, also I can check that your sitemap is working fine but category and post urls sitemap not discovered
example-
Hello,
I checked all the sitemaps, they are working fine.
Please exclude the sitemaps from caching by following this guide:
https://rankmath.com/kb/exclude-sitemaps-from-caching/
Once done, clear your website cache and resubmit the sitemap in the Search Console.
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.