I was running bakerloo service elephant and castle to harrow & wealdstone but got interrupted just after Queens park so saved to come back later. Now when I load this saved "game" everything seems to continue, except that the brake compressor seems to be broken. The main reservoir never gets topped up, and after stopping at willsden junction the pressure is down to about 3.1 and I can't move my train again. I've found the compressor switch, turned it off and on again, nothing. I've shutdown the entire cab and started it up again. nothing, now the brakes are stuck at zero pressure. Pressed just about every button I can find in the cab, but nothing will bring the air pressure back up. (edit) probably worth mentioning that I saved with the train in motion so the brakes were fully off at the time.
