I’m having the same issues. In all areas of MSFS the rudder functions properly except in free flight. When I am in free flight in the air or on the ground trying to taxi the rudder will respond momentarily to input then it will go to the neutral position. This makes it almost impossible to taxi properly. I use the Logitech HOTAS and the thrustmaster pedals. The issue occurs using either the pedals or joystick to control the rudder. I’ve calibrated the pedals with Logitech’s calibration tool, I’ve adjusted the sensitivity to various settings in MSFS, and I’ve turned off the rudder assist in the assistance options. None of these steps has any result and the issue remains. My gaming computer is an Alienware M15 R6. MS responded quickly with a list of things to try and I tried all of them but the result was the same.