Recently I purchased some HO lots at two different auctions at either end of the country. I tested all the engines that came in those lots and almost all of them the light works, but the engine doesn't run. That certainly could be legitimate, but seems very strange to me that only one worked in both ways and everything else had one work. Only two didn't work at all and there were 20ish all total. Anyone know why that might be? Just strange coincidence? I tried two different transformers as well with wires to wheels, I don't have a layout.Thanks for any help you can give.