Hi Chris,
Thank you, since my publication was approved I had some issues with the updates. Basicaly after a while the new posts published on my website were not updated on Google News. I am using the RSS feeds for Mailchimp alos and experienced same issues in the past. I’ve managed several times to fix it by using Fix My RSS plugin.
I think that there might be some conflicts with other plugins I use: maybe it could be someting with a security plugin (currently using Cerber, but I checked to see that options for RSS are unchecked), or maybe WP Cache Plugin has something to do, but I can’t seem to find any options.
Your solution worked on Google News, at leas for the main feed… so thank you. I edited the links for the sections I included also and I am waiting to see if Google News will update the content.