I've converted a contact to an agent.
They activated as an agent (it was me).
And now I cannot log in as an agent. I get the following error message:
You seem to have already logged in with firstname.lastname@example.org. By proceeding, email@example.com will be logged out and you can sign in with different email
So, I continue and try to log in as firstname.lastname@example.org, at which point I get the error message:
You are not allowed to access this page!