Service Q368 throttle fail

[Handbrake]

Has anyone worked the Chicago Cumberland Q368 manifest, near the junction where the coal mine branches off I noticed a coal train waiting for me to pass, a few moments earlier I lost power on the throttle it was set on run 4 but the amps dropped to 0 and the engine sound was at idle. I reset the throttle and cranked it up even higher but the sounds remained at idle and amps at 0, even when I hit the grade the train, now in run 7, slowed to a stop (brakes off) and began to roll backwards down grade. My first attempt at this scenario had me passing clear aspects all the way to the junction and promptly into a head on collision with the coal train. The following two attempts I got the throttle issue. Anyone else given this a go and completed it?

Mark