I've encounter a problem with combobox that I use to get email from a person. When I start new form everything is going perfect. I get all fields with mail, etc. But when I enter to item from deep link, this only one field(combobox) with mail is empty. This error destroys the whole app, and it is only when I enter Edit mode of existing item. How to handle it?
To search for user I use expression:
Office365Users.SearchUser({searchTerm:DataCardValue18.SearchText})