Limitation on searching org unit by employee
In searching org unit, you can use "Employee" as search criteria, thus you get all the org units to which the employee is assigned.
But there's a limitation about this, see above.
In search result list, the returned entries don't necessarily contain the employee you're specifying, instead, some with other employees, some are even blank.
see "Employee Name" column:
this is per standard design, the "employee name" show only the name of the employee who's under the head position of the org unit found in result list
see the flag "Head of org unit", only employee under this head position will show up in the "Employee Name" column, if there's no head position under the org unit, the cell is simply blanked out.