1. In Core > User/Access > Profile > Address > Edit - Check to see whether the address that is selected as preferred for each parent is the same address.
2. Check to see if the address that the parent shares with the student is the same for both parents.
3. If one of the addresses is different, to get both parents to show up in the directory under the student, delete the non-matching address from the student's record and add in the correct address.
Note: It takes 24 hours for the directory to update with the new information.