Got SSO setup and running. It works great when using my first user account (admin user) on the site. It logs in as that user as expected. However, when I try logging in (through SSO) as another user (different ID, Username, Email), it overwrites (or deletes) the previous user with the new one.
Same thing happens if I log out of that user and log in with the previous one. Still only one user account on Discourse.
Any clue what could be going on there?