I seem to be having trouble with the Cl710. I stopped at Watford Jnc, shut down the cab and changed ends but when I set up the other cab and try to move the brakes release but the train won't actually move. Am I missing something?
Are the third rail shoes down? Is this in timetable mode? If so, which services please? I might give it a go.
This is a shot in the dark, but did you turn the DRA on in the cab you left? Try leaving it off when you change cabs.
I had the same problem the other day. I should have noted the service number but struggled to fix it.