The gangway doors on the 377 keep opening and it is absolutely impossible to close them. This is no issue on the 387s, but on the 377s it completely ruins the driving experience. I know London Commuter is seen as an "old route", but with how it's priced it shouldn't be abandoned with how glitched it is. I'm not the only one to report this, you should really listen to your community as we're the ones that make you money.
Open the doors before you start a service. Before you depart your first station close them.and voilĂ , problem solved. Best that you can do currently.
There are many things that are missing from the simulator. No improvement even after repeated requests It will be better if this system changes