DIRECT ANSWER
Disconnect every nonessential controller, restart, bind one device, and reconnect peripherals one by one. Remove every duplicate axis as soon as the conflict returns.
Isolation test
Flight-sim and driving rigs often expose more axes than the game needs.
- Close the game
- Unplug wheels, spare gamepads, pedals, and extra quadrants
- Leave one intended device connected
- Restart and clear duplicate bindings
- Bind rudder and throttle
- Confirm neutral in a free-roam session
- Reconnect one device at a time
What a conflict looks like
Typical signals are an engine that will not stay at neutral, a rudder that moves without input, two throttles changing together, or a mouse cockpit control snapping back.