Is it usual for only platforms 3, 4, 5 and 6 to be used on a Sunday evening? That's what is showing on my screen. I suspect it could be a signalling fault if this is an unusual situation, but nothing is showing. I have to confess I don't frequent Preston station.
EDIT: A randomly delayed 1913 service to Liverpool Lime Street is now supposed to use platform 2a. Goodness knows.