Playing one of the Bakerloo scenarios, as opposed to a standard timetable run. On approach to Elephant and Castle, under clear signals and running under the speed limit, train simply ground to a halt. Unable to take power even after doing a full cab shut down and power up. Loaded the save game and this time got as far as Lambeth North but after closing the doors, again unable to move. No other control in the cab that might prevent traction being taken, touched. Anyone else encountered this? Have I exceeded some sort of hidden time limit - I was running around six minutes late at that point? If so, then surely the scenario should end as failed with a message why. Quite frustrating.