Jagger19 posted:Thanks for the reply John,
From what I can tell the switches seem solid everything is rigid aside from the parts that are supposed to move, and the switch point sits flush against the rail without any play in both directions of travel. This derailment only happens with the rear truck of the steam loco
The "rear truck", i.e. trailing truck of the engine, or the "rear truck" of the tender? Something may be restricting the travel of either.
rolling stick is able to pass through without incident as well as diesel power.
