Adding a second SAML provider created duplicate users in the SAML configuration. The duplicate users being created in the SAML configuration caused authentication failures. In this instance, a second IDP was created for Harbor. The objective for creating the second IDP for Harbor was to have both TKGI and Harbor work with the same SAML provider.
TKGI 1.22.1
UAA
SAML
In this instance, there were duplicate users due multiple SAML providers which then caused authentication to the group membership to fail.
Used API as documented in the following documentation to delete duplicated users.
https://docs.cloudfoundry.org/api/uaa/version/77.30.0/index.html#delete-2
https://docs.cloudfoundry.org/api/uaa/version/77.30.0/index.html#overview