It was right... something else was wrong

I was running power to a spur track, and carefully made sure the color code was followed, track power pickups worked, and then hooked up the bus wire.

Nothing.

Checked the connections at the panel, the bus and feeder connections, and then grabbed my meter. Power is getting to the track, but nothing is happening still. Clean the track and the locomotive's light illuminates.

Just because something's new doesn't mean that's where the problem is.