Let users know it is normal that after groups import users show up without name, studentnr and email
When importing groups, peer takes over only minimal data from the CSV to add the corresponding users. However, most user information is only known once the user actually logs in. This looks a little strange in the UI because some students will have data and others don't.
Instead, perhaps these students should have something else than just blanks, and have some indication that additional information will be known once they sign in for the first time.