I'm building an 8 x 8 layout using ez track. I have three crossovers. Two to connect the inner oval to the outer oval and one to use in the middle for a yard. The two on the outside work fine but the one in the yard will not work as a go through. It will work if crossing over.  I've connected the black wire to the frogs and I've disconnected the black wires from the frogs and neither helped. This is the second crossover that didn't work. I returned the first one and when I got home this one is doing the same thing. I'm wondering if I shouldn't use a crossover in the yard. Has anyone experienced this or does anyone have any suggestions?

Thanks