Hello,
Thank you for contacting Rank Math.
If you are using some other plugin to generate the News sitemap, you need to submit both sitemaps.
In Rank Math PRO, we have the option to generate a News sitemap, if you use that, you would only need to submit the main sitemap. Google will automatically crawl the inner sitemaps.
https://rankmath.com/kb/news-sitemap/
Hope this 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.