Double checked the booking class is correctly input and CX only took 3 out of the 4 segments on my ticket. I didn't provide any FFP when I did the booking initially so as to avoid any mis-credit.
I also called JL and they saw my request already. The flight has just past its 6 months claim window, so there is no where I can credit this flight to if JL rejects, though I can't think of any valid reason. I claim within 6 months, RJ biz D-class (eligible), no double dip.