I have tried to get my gp35 diesel and 2-6-0 locos to run on the same track. using the ez app it finds both units but will only allow one to run. when connecting the other the app starts up but will not move forward or reverse. take off the first loco and number 2 runs perfectly. I thought you could run more then one unit on the same track. any fix for this?
I think the first thing I would try would be to delete and reinstall the app. Other than that maybe check to make sure the locos each have a unique name.
You may also want to check to make sure you have enough voltage/amperage to run two locomotives.