I'm currently on 1A34 Manchester Pic to London Euston 1235-1439, which is carrying two and a half trains' worth of people. 1A32 and possibly some others have been cancelled due to a one-under, possibly involving 1H64 earlier on. Delays are expected for a while yet. Sorry I don't have any more information. Only going off the TM's announcements (which have been quite informative).