This may be happening because more than one directory widget may be added to the page.
  1. School Website > Website Management > Websites
  2. Click the three dot icon next to the website and click Edit Website 
  3. Go to the page the directory is on
  4. Click the wrench icon
  5. Edit page content
  6. Click the trash can icon on either directory widget
  7. Apply changes
Once one or the other is removed, the Faculty & Staff directory will no longer be duplicating.
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