I'm a site administrator. When performing a manual user enrollment for the course, I open the "Enrolled Users" menu then click on "Enrol Users". While in "Enrol Users" window in order to find specific user I input a search criteria into a search field. As a search criteria I can use either a name of the user or part of email address - before or after the "@" - and I get the results. The problem is that another team member who is defined on the system level as "manager", "teacher", "course creator" and "Authenticated User", for some reason cannot use the email address as search criteria in the same window, i.e. when he does he gets no results.
What should be modified so this user would be able to search for users in "Enrol Users" window using the email address criteria?
Thank you in advance for your help.