When a parent chooses to show only their name and no other information in the directory, it works as it should in parent directory.  In the student directory when you choose "more information" it does not show parent contact information, however if you click the 3 dots in the circle below their name it opens up the student contact card which lists all contact information on the parent.  This is a glitch that needs to be addressed.  It is a mute point for parents to even make that indication on their own profile settings if you can still get to their information via their student.