As an update, I brought the loco to someone in the area who also has Legacy and they put the loco through its paces. First try - everything worked fine. Then I got the bright idea to ask him to power everything down and retry a couple more times (given my issues are sporadic). On second attempt, the engine acted as though it wasn't receiving power - just sat there dead. On third try, everything worked fine. On fourth and fifth tries, it fired up but would not accept commands. Sixth try, it was dead. Seventh try everything worked fine. I also tested both my track and his with my multi-meter, but track was receiving 18v even when engine seemed dead. Also, my R16 engine continues to work perfectly on my layout and the one on which I tested the Southern loco last night.
