@edric
Hi there,
We are running into a similar problem, may be a long shot nearly a year after you first posted, but were there any other settings toggled on or off that can also affect this?
For example, we want to enable “Disable Sign Ups” under Authentication → Database → <Connection (Username/Password for us)> → Settings, so that nobody can just sign up on their own if they have the application login URL. Is this something you have enabled?
We want to manage users by invitation to organisation only. Is this the outcome of your posted result?
Thanks