Hi
@cody, thanks for the offer to help out. After a bit of experimentation with a locally installed instance of Medplum, I can verify that I had (embarrassingly) created the situation myself through user error.
High level reproduction:
I had admin privileges, and had invited myself as a user using the same email address (first mistake). I then proceeded to delete myself as a user, which prevented any further logins as both an admin, and a user. I believe (though I could be wrong) that a reference to the admin profile still existed, and because of this, the
choose profile
sign in flow was thrown, but I wasn't able to select anything.
Not sure if this observation is of any value, but I thought I would share anyway.