Perplexus Epic

Every once in a while, someone in my family gives me a puzzle. Not a simple picture puzzle, mind you, but elaborate things made of plastic and metal. This year, I was given a Perplexus Epic. The goal is relatively simple: Roll a steel ball-bearing along a track to get to the end. The track itself is quite complex, though, and features 125 segments you must follow. Or does it?

You see, the box says there are "125 challenging barriers" and the numbering on the track would seem to indicate that number 125 is indeed the end. However, as far as I can tell, there is no 64. The numbers on the track go 62-63-65. There are other segments without numbers, but 62 is the top of a staircase, 63 is the bottom, and then 65 is at the top of another staircase. There's a little nub right next to it that could be 64, but it's so close and so small that I'd hardly consider it a barrier. Plus, 125 isn't a barrier so much as it is a little pit the ball drops in when you're finished. But, I guess 125 sounds better than 123.