unless the gwr unit was stuck behind a freight waiting to cross the station throat which couldn't because an emu was stuck (not saying that's the reason but that would work..... beats saying congestion
)
It looks more like a southbound
XC▸ service, or rather two (there's room for one to wait and the Reading shuttles still to get round it).
There were a lot of down trains struggling to get into and out of Basingstoke. The greatest sympathy is probably due to anyone who got to Waterloo to board 1W51 0530 expecting to get to Weymouth. It reached Bournemouth at 1059, 191 late, before losing the will to go any further. Don't mention any "great train adventure" to them.
Was this a case of "frozen leaves"? Leaf fall was late this year - so late it could have overlapped with the frost season. I don't think the RHT trains can do both at once, can they?