Github user andrewmlim commented on the issue: https://github.com/apache/nifi/pull/2515 After deleting a specific granular policy, the following message appears: Showing effective policy inherited from Process Group restricted-components. Override this policy. The text "restricted-components" in the message is hyperlinked. If clicked you get a dialog that says: Unable to locate group with id 'restricted-components'. Unable to enter the selected group.