How come the Reporting Hierarchy Generation process is not finding some hierarchy levels after a hierarchy update?

Whenever there's a change in the organization hierarchy, you must regenerate the Internal Resource Organization Hierarchy.

Here's how:

1. Click Navigator > Resource Directory.
2. Click the Task tab on the drawer.
3. Click View Organization Hierarchies.
4. In the Search section, Hierarchy field, enter Internal.
5. Click Search.
6. Click Internal Resource Organization Hierarchy.
7. From the Action menu, select Edit This Hierarchy Version.
8. Click Save and Close.
9. In the dialog box, click Yes to confirm that you're regenerating the hierarchy version.