Everything is pointing to a mechanical issue and you think it's sensors? Do you have VCDS error codes or anything pointing to sensors or actuators?
Thanks for the response.
Yes I bled the entire system. I understand your point but I'm leaning more towards a sensor input or an abs module issue at this point not a physical problem with a caliper.
I've been driving it and I've figured out how to get it to un-stick. A few quick jabs to the brakes and it stops doing it. I may flush the bake system again and see if that makes any change. Also going to recalibrate the steering angle sensor.