I can only get the plug in connections half way in. Is that OK or should I push harder?
Should go in fairly easy. Try turning it over.
I've had a number of these do the same thing. Sometimes I would take a small pair of channel locks or pliers and gently clamp on the flat side of the plug to pull them together. Problem with that is I'll never be able to pull apart. I wish Bachmann would produce turnout connectors like their competitor and I could use my own wire.