@polodrawers5 Hiya,
It looks like the sub claim returned is not a UUID: 3XXJmjO2q9DQCmGWV8-dyv_EzpOT-m_IAc3NX5nuYXA.
FusionAuth requires all user ids to be a UUID.
The default unique identifier for OIDC is sub, but that can be changed under the Options tab.
So I'd try changing that to oid and see if you can create a user.
Thanks for using FusionAuth!