Index membership / accidental noindex
A hidden 'noindex' tag or header on a page that tells search engines not to list it. It's often a leftover that was never meant for the live site.
Why AI engines read this
While it's there the page can't enter Google's index, and Google's index is what feeds AI Overviews and Gemini grounding, so removing it makes the page eligible to appear at all.
How to tell it applies to you
A page ships a noindex meta tag or X-Robots-Tag header, or a site: check shows the URL isn't actually in the index.
Apply it on your platform
This one is a recommendation you apply yourself: Findrix flags the exact directive and page, and you make the change in your platform's settings.