Im using select controller, placing the train on the track the sound starts straight away, stationary all the sounds work, but as soon as i turn the controller to start the loco moving, it moves half an inch and stops. Sound continues. I have reset CV 8 to 8. Using my railmaster . If i take the sound chip out and replace the blank 8 pin It works fine on my dc track. I have cleaned the track, i have cleaned the loco wheels.