Hubspot integration: A valid SubjectConfirmation was not found in the SAML response. WRONG_SUBJECT_CONFIRMATION

Hello All,
I found a great writeup on this in the following post: Auth0 integration to HubSpot - #5 by benjamin9T
But am unable to get past an error of:
Error: WRONG_SUBJECT_CONFIRMATION
A valid SubjectConfirmation was not found in the SAML response.

In checking the logs in Aut0 I am receiving a Success Login so I’m not sure how to narrow down the solution.

Any help/ pointers appreciated.

Regards