Can you please describe what you have done here?
In many locations with parallel tracks, I've strung a single bare wire between tracks and tied it to earth ground. In my helix I've used foil and screen tied to earth ground to shield the stacked tracks. However, the section of track where I have been testing these locos has no earth ground application. Looks like I'll have to add some.
Do you have a volt/ohm meter? If so, measure the resistance between an outer rail that is fed by the Base (not by a capacitor) and the earth ground. There should be an open circuit (infinite or very high ohms.)
I just checked that. Bad news, direct connection. I have no idea where or how to break it.
Please confirm that you are running TMCC, and not Legacy.
Just TMCC right now. I own a Legacy base, but it isn't connected yet. I tried it, but discovered a different problem. My power supplies and the base are on a single power switch and all locos take off at full speed. That suggests that there is no command signal in the combined TMCC and Legacy configuration. I may need to turn the power on to the base before applying power to the rails.
