It's very important on this accessory to make sure the insulated rail is on the correct side for this to work. The two 5" insulated track sections must have their outside rail with the "cut" on the same rail marked as "insulated" when looking at the bottom of the crossing. Otherwise, the gate crossing will go down whenever there is a train on the layout.
The new design just simply changed the mechanism of how the gates are lowered/raised.
