Hello,
Thank you for contacting Rank Math support, and sorry for any inconvenience that might have been caused due to that.
The posts that you published in the news sitemap are only valid for 2 days and they will be removed after that period.
This is actually a guideline from Google which we follow hence the decrease of URLs in your new sitemap.
For more information about it, please refer to our detailed guide here: https://rankmath.com/kb/news-sitemap/#google-news-sitemap-guidelines
Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.
Very helpful, thank you and have a nice day.. cheers
Hello,
We are super happy that we could address your concern.
If you have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.
Thank you.