When I start a timetable in Northeast corridor the locomotive has fused to the train car after the game loads. I thought some of the bugs and glitches were going to be ironed out with this update but they're stillthere with new ones popping up left and right now the loco is fusing with the train car.
i remember this bug. Try start and complete second mission and wait 5 min whitout leaving, start third mission and complete.