I don't own a 9XR but considering buying one because of its flexibility. As I understand, the 9XR channel assignments are configured like JR/Spektrum, that is 1 throttle, 2 Aileron, 3 Elevator, 4 Rudder. The Naza is configured for Futaba channel assignments, that is 1 Aileron, 2 Elevator, 3 Throttle, 4 Rudder. From reading the 9XR manual, the sticks can be assigned to any channels. So it should be configured to conform to Futaba sequence if you are going to use PPM from the FRSKY receiver to the Naza. Possibly I don't understand the mixes you are setting up, but the channel assignments you listed do not conform to the Futaba/Naza sequence.