The index combines this household with the previous one, resulting in odd reporting of relationships.
@AlanSnyder1 Unfortunately, no index is flawless. Fortunately, you were able to find the family you wanted. While the Edit options on FamilySearch do not allow you to modify relationships, you can add notes when you attach the record to you ancestors and point out the error. This might help avoid relationship confusion on the part of other users.
It would be better for someone to fix the index.