Problem using Mission Planner SITL 4.7-dev and X-Plane 12

Hi there!
I am enjoying the MissionPlanner/Arduplane SITL simulation connecting with the X-Plane12. It works well when I select the “Stable” plane model. But when I select the “Latest(Dev)” model, all control inputs (Aileron, Elevator, Rudder and Throttle) are lost and aileron and rudder are fixed to the left. So I can not fly the model. Does anyone know how to solve this problem?