When you put your Login and Logout as shared container, this means that all the users that are using those shared containers will execute exactly the same transactions.

You can see a shared container like a shortcut that you can use on different virtual user. So your two virtual user profile will execute the same Login/Logout containers.

Make sure your VU Profiles includes Login and Logout shared containers. If it's not the case, copy/paste the Shared Container to the destination, it will create a link.