Students in ClassroomParent do not have addresses of their own. They inherit addresses from their parents/guardians. The system compares the addresses of all of the parents for whom the student has been indicated to live with and if any are different, it lists them all.
Sometimes this can lead to confusion when the address differences are small, such as when one parent’s address is entered with “Road” and another is entered with “Rd.”. These addresses would both be listed under each parent in the directory.
The best way to fix this is to edit the addresses so they match.