Free Flight issue

I’m finding it impossible to even begin a flight in Free Flight. I had a previous issue which resulted in the aircraft not moving after being pushed back. Now, when I go to start my Taxi, I very slightly press the A button on my Xbox Controller to increase power in order to taxi, and the throttle immediately goes all the way to full. I try and reduce it and the arrow goes down on my engine mapping but then the game glitches and sends my aircraft into a building, I have no choice but to then quit and try again and the same happens time and time again. Has anyone else came across this?

Sorry for the long winded post. msfs-2024