CRJ 700 Throttle not working

I actually use that controller and it’s a little tricky at first, but totally doable once you get a hang of it. Those rudder controls are VERY sensitive. If you press it ALL the way down, you won’t be able to turn. The key is manipulating it very gently. The lower your taxi speed, the more gentle you have to be. I have had zero issues taxiing with it in the last several flights I have done.