Joystick input detect wrong in QGC 4.2.0

As I’ve just commented in your other post:

That said, it’s useful for us to know about any issues in software that we’re planning to transition to in future, so we can fix them before they become an issue for our regular users.

I (and our software team) don’t fully understand the issue here - is the problem just the direction the display sliders move when you push the corresponding joysticks on the controller, or does the joystick calibration result actually cause the vehicle to move in the opposite direction to how you intend it to? What happens if you calibrate it in the opposite direction it tells you to?