To check or change this, as a Platform Manager navigate to:
  1. Core > People Finder > Search for the User
  2. Click Settings
  3. If the "Include my name, but do not include any other information about me." radio button is selected, then this is why you cannot see the Users information in the directory. You can change this via the radio button to  "Include my name and only the specific information selected below to those specific constituent types." and select or deselect the information you want or do not want displayed.

You can also do this by impersonating the User.
  1. After you have impersonated the user, click on the users name and click the Settings option.
  2. Click Privacy and then select the option via the radio button to "Include my name and only the specific information selected below to those specific constituent types." and select or deselect the information you want or do not want displayed.
Note: This will take 24 hours for the changes reflected in the Directory