Domain Mapping Cross-domain autologin question


I have a question with regard to domain mapping on a multi-site subdomain-based network. I have "Cross-domain autologin" set to "Yes" and "Load Cross-domain autologin asynchronously" checked.

When a user logs in to, should they also be logged in to It doesn't appear that they are. Specifically, here's what's going on.

I go to and I log in with User1. It takes me to I then go to the address bar and type in and it shows that I'm not logged in. If I log in again on it then shows the admin bar at the top. I'm not sure if this is behaving as expected or if some other plugin is conflicting with the expected behavior.

Can you describe the expected behavior for Cross-Domain AutoLogins on Domain Mapping?