Pinterest unable to read XML - cloudflare issue?

I have a Pinterest catalog which is fed by an XML file. My wordpress site generates a product feed XML file every week. This was all working for the last year.

Recently, I switched out of my host’s Let’s encrypt certificate and switched to Cloudflare’s origin server certificate.

I am wondering if this change of certificate is creating this new problem as Cloudflare is restricting access somehow. Am I right in this assumption? If so, how do I fix this please?

Pinterest catalog settings - Pinterest catalog settings - Image on Pasteboard
Pinterest catalog processing error -

File URL: <![CDATA[ Eco friendly products & clothing ]]>

Thank you

It should not have anything to do with the certificate change.

The XML file loaded fine for me.

Have you looked too see why it was blocked in your event log?