I used the clone button to clone one UNA Cloud server to another UNA Cloud server. The second server (members.free-comm.org) has OAuth 2 and the first server (explore.free-comm.org) has UNA Connect installed. I see the members profiles on the cloned server however they are not usable. 

When logging in to the cloned server with their same email they see a message saying their email is already in use. So it seems I should delete the profiles on the cloned server and have them recreate their profiles there? Then they can use UNA Connect to login to the explore server. Login with UNA has worked successfully with all but one of the  accounts we tested.