Well there were issues before it came to Seaford, but the points were working, it was the last train to use the line before the points totally failed too, trapping the steam train between Newhaven and Seaford and a Southern train in the old Marine station.
Should still run as planned tomorrow...
Its going along the whole of the East Coast line, for the record. Its at Seaford now and is also running tomorrow if your in to steam trains.
Southern actually cancelled 1 or 2 regular services to/from Seaford to allow this to run as well.