I understand, say the post,? just trying to find what is going on.
I am an old technician, trying to eliminate possible problems on your setup.
I would like to see if you have tested the turnout as standalone? connected to a DR5000.? I have an idea of the problem.
Just the DR4018 with DCC and DC power and the Kato turnout with the DR4101 connected.Nothing else connected to the DR4018
Dennis