IBE Group Reservation correspondence has never worked properly

Since the IBE payment always goes on the Group Master but the charges remain on the sibling reservations, there are no options for Group Reservations to ever receive an accurate triggered correspondence that properly shows "balance owing" or "payment made." Sibling reservations will always show a zero payment made with a full balance, and group master will always show a negative balance owing due to a payment but no charges.

Please turn this into a job so this gets corrected - it has been an issue for many years with no reasonable workaround other than to just turn off all group correspondence and do it all manually.