Not sure if it was weather related but on arrival at Heathrow yesterday evening, there were no Elizabeth Line services beyond London Paddington, which according to airport staff had been the case for several hours.
They were taking a lot of flack from angry passengers, who had been promised trains would turn up, then they didn't and they couldn't say where it was going, despite engaging with the MTR control.
They said that TfL should have made efforts for ticket acceptance from Heathrow Express, as their services were coming in and leaving empty, as people no doubt didn't want to pay the £25 fare.
As it was, I boarded what I was told would be the last Elizabeth Line service of the evening and changed at Ealing Broadway where I got a Hainault service and got off at Liverpool St for my last train home (the 0046 to Colchester).
I'd been told there had been signalling problems, but the impression I got from some of the passengers was that this happens frequently.