@lehighline posted:
I suspect your trackwork is fine. Based on your track diagram, if the train is going clockwise, all the turns EXCEPT for the problematic turn are RIGHT hand turns. The problematic turn is LEFT hand. Pop the shell on the Genesis and carefully check the wiring from both trucks where it goes through the frame. Look for bare wire and/or a burnt spot. Also check how snug the pickup assembly is screwed to the truck and that the insulating spacers are installed properly.Chris
LVHR
Check out my response to Bobby just above.
Seems to bare out your theory about the right vs left turns.