Hey Nico!! Thanks for your suggestion.
Using your suggestion, I remapped "Set Nose Wheel Steering to Limit" from my rudder pedal brakes (Joystick L-Axis Y+) and (Joystick L-Axis X+) to some random key binds on the keyboard to test your suggestion.
Heres what I found:
-First I only remapped the left "Set Nose Wheel Steering to Limit." I was able to steer all the way, even pressing the left brake, until I got on the brakes fully (pressing both brakes), and then the steering was gone. So I reloaded and tried the same thing, turning right using the right steering and brake, and sure enough, once I pressed the right brake (activating "Set Nosewheel Steering to Limit" also) the Nose Wheel Steering quit working.
So my suspicion was that either a) the airplane didn't like the double-bind of brakes & set nose wheel steering to limit or b) Set Nose Wheel steering to Limit was breaking it. So I removed the right ride "Set Nose Wheel Steering to Limit" from the rudder pedal brake to the keyboard. Reloaded once more and taxied around just fine using the rudder pedals and full brakes. Once I pressed the key bind on the keyboard for "Set Nose Wheel Steering to Limit" the nosewheel steering quit working.
So in a short conclusion, "Set Nose Wheel Steering to Limit" seemed to be the issue for me, and I any time that was activated, it would completely take away any steering, even though the rudder pedals and tiller in the flight deck would move, just incase anyone has the same issue as me!
Thanks so much for your simple suggestion that solved something that was driving me crazy!