Duo 2fa adfs error


Running Duo Proxy 2.0 on ADFS Proxy Server to enable Duo MFA. when trying to authenticate via ADFS Proxy in to our Dynamics CRM getting an error
System.Exception: Unable to parse username from SAML token:


The Duo ADFS 2.x integration isn’t compatible with applications sending encrypted assertions, like Dynamics. This issue is not seen on ADFS 3+ where MS implemented native support for MFA plugins.

ETA this is mentioned here: Two-Factor Authentication for Microsoft AD FS FAQ | Duo Security?