Hello, my name is***** to Justanswer! Give me just a few minutes to look up some specifics, I'm working on this now.
Since it was working before, and now it is not after moving the equipment, I want you to check your midi cables, and make sure you have midi out plugged into midi in on the second keyboard, and vice versa. That is a total of two cables. Tell me if that somehow got connected wrong.