Earlier today (about quarter to 4) I was on an H&C train that was held outside Hammersmith. After a few minutes, the driver gave an announcement apologising for the delay and adding that another train was about to leave. Shortly afterwards, a train went past in the other direction and we started up again. As we came into platform 3, I noticed that the other platforms were both empty. My immediate thought was that if there were no other trains there, why weren't we sent into one of the other platforms? However, that's not all. There were a number of people waiting on platform 1 which seemed a little strange as a train had just left and also our train (in platform 3) was likely to be the next departure. As I was leaving the station, I noticed that the boards had 'next train platform 1' on them. This begs two questions: Was there a problem preventing the use of platforms 1 & 2 and were the boards incorrectly directing people causing them to miss the previous train?
Having the incorrect next departure platform showing at Hammersmith HC&C used to be quite common, but I haven't noticed it as much lately. It's also been quite a while since I encountered a 'we've changed our minds and the next train will leave from another platform' announcement.
There was a time a few years back when they seemed to have a major aversion to using platform 1 - months went by wehen I never arrived at or departed from there and it was virtually always empty. So we would sometimes be held outside, and when we eventually arrived it would be at 2 or 3 and 1 would be empty.