I had an odd one happen last night. I was running my new (to me anyway) Legacy 2-Truck Shay. I put it on the track, started it up, and then cracked the throttle. It didn't move! I wiggled the red knob back and forth, and still no movement. I then did a reset with the circle-R, still no joy.
It was then I noticed that when I cranked the throttle, the throttle graph wasn't coming up, just the bar! The train brake was off, which is usually why that happens. I just ran the train brake back and forth a couple of times, and suddenly everything came to life.
The good news was, at least for me, that wasn't my remote! However, that's the first time I've seen that happen like that. I guess I get to join the club...