Every time I get in the yard and stop there, it just keeps saying "go to the yard" and there's no way I can get out on both ends there are red signals. And I try calling the signaller but nothing worked, and I think this is something that you can't get out of until you get it fixed.
Yes you almost have to go 2yrds past it to clock. I also had issues with save game on that one. So had to redo it. It thought Acton yard was at Ealing on the west bound track...so when I got to Acton it didnt recognise that I had arrived So your problem could be a saved game issue?