Post Grid – posts now not showing on SERP

Since adding the post grid plugin to our projects and blog pages, any new posts that have been added to the site are no longer being indexed or showing on Google.

The posts that have been added to the site prior to the plugin being active all appear as they should on Google etc. but the new ones aren’t being recognised.

Has anyone had this happen to them before or if I’ve missed something when setting up the post grid?

Used the post grid shortcode first option when adding to the page required.

Thanks