Recently upgraded our aircraft from ArduPlane 3.2.3 to ArduPlane 4.1.7. Airspeed sensor worked fine with 3.2.3, (Mission Planner 1.3.75) but does not work with 4.1.7. (Our other aircraft has an old autopilot as well, ArduPlane 3.2.3, and the airspeed sensor works fine on that aircraft with Mission Planner 1.3.75). The autopilot (that won’t get airspeed) is a 3DR Pixhawk (PX4 v2.4) and should be using fmuv2 as the firmware. (Or Pixhawk1-1M, correct?) When loading Pixhawk1-1M using the USB cable and then going through the Setup Menu, the airspeed sensor worked. But then would not work when the autopilot was connected to Mission Planner wireless through the modem (Digi modems). Any help appreciated.