Okta to AWS - roles/samlRoles not showing all AWS roles

I’ve followed AWS and Okta links (below) to create an AWS Account Federation. When I add an individual to the app the “Role” and “SAML User Roles” don’t present all the possible roles. And when I add a group to the app and specify a Role I get “Invalid value data type for property ‘role’”

OktaInvalidRole

The links:
https://saml-doc.okta.com/SAML_Docs/How-to-Configure-SAML-2.0-for-Amazon-Web-Service.html

Thanks in advance,