This is because E3 role doesn't have Top level mentioned in the hierarchy. Step 1. Go to E3 Role list in Configure tab the "Top level item" is not present. Update as All roles. Step 2: Still giving error then, delete the "All roles" from Grid view and then again do the Step 1. Hope this will resolve the issue.
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Step 1: Delete the Parent All Roles from Grid view. The hierarchy will become flat hierarchy. Step 2: Now mention/update "All Roles" in Configure tab as Top hierarchy. Hope it helps.
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