I bought a PS3 Santa Fe Northern from Trainworld. When I took it out of the box, the most jarring aspect is that there is no metal needle that sits on the drawbar against the tender hitch. I'm not sure if it's supposed to be this way or if it was a production error. Can anyone tell me if its supposed to have the needle? The product number is 20-3667-1, catalogued and released 2016-2017ish. There is power going to the engine, but it is not moving. I am convinced that the lack of a drawbar needle is why this is so, but I would like clarity before I take the engine to the technician. Thanks!