Hi @joeturner
I can see the issue and unfortunately, i don’t think it will be possible to do what you want without editing the core files.
I have recently done a lot of work with the QP_Query, ordering, and hierarchy of nested posts and found out how to correctly order the posts.
After the WP_Query is complete and you have the $posts, you need to then use a WP function to order them based on the menu/parent attributes.
This will not be possible with the current relationship field, so perhaps you can think of another solution for now?
Thanks
E
