The resultlist above has Name – Email, the Selected value in the widget has email – name:
Here is the magic – the selection (your MF does something similar)
Then the mapping of the selectable/seleceted objects attributes + some extra text to maybe better understand. So it comes with fixed-text “ Selected” then the replacement with the mail address and the replacement with the name...
Here’s an example where I am searching on part of the email address and present the result-list differently then the selected item. Hope this helps.
If you do not see your selection it either means you’re selected template is not fully correct or maybe there might be a problem with the access rights. That latter you can check by adding a normal reference selector and see if it works.