Using the standard plane airframe developer build of PX4 and the daily build of QGroundControl, with sys_hitl set to 1. Upon connection and arming of the aircraft, throttle is commanded at some value above idle and impossible to change. Yaw is mapped to throttle up/down, and pitch/roll is reversed on the other RC stick. Remapping the channels in QGroundControl do not change this effect. Rebooting the pixhawk after every change. Any ideas why this could be?