I've loaded in several 387 services so it can't just be a fluke. The 387 has the wrong set of sounds, it has the 377 sounds for the AWS and doors. Not only that but loading a 387 service at Victoria seems to cause a weird lighting glitch and reduces the framerate to an unbearable stutter. I knew this route was too good to be true. Yet again us players are the ones who have to do DTG's play testing. Let's just hope it gets fixed soon.