I have a Thrustmaster T16000 stick and a Saitek X-55 Rhino throttle. I mapped my throttle to axis on both systems but it didn't work. I was using slider axis instead of recentering ones for throttle. After reading your comment I mapped my throttle to a recentering axis just to see if it works, but it didn't (and even if I don't like using a recentering axis for throttle).I'm already used to these systems from DCS and IL-2 Sturmovik but it only occurs in KSP on throttle (as I said pitch,yaw,roll are fine).