I have a Taranis FrSky which I'm using to control FlightGear.
I've mapped five proportional axes axis-0 through axis-5
I was struggling to get all the mapped axes working correctly in FlightGear, so I checked the mappings using a web based joystick tester https://gamepad-tester.com/ and all five axes were working as expected.
Checking with js_demo axis 0, 1 and 2 were working correctly however axis 3 and 4 were showing nothing.
Strangely axis 5 seemed to be mapped to what ought to have been the output of axis 3.
Anybody have any idea where I might have gone wrong? Thanks.