I’m finding, when being over eager, the doors of a moving train can be opened before you’ve come to a complete stop at a station. If you press the open door button before the train has stopped, the doors sound as if they open before you stop. Previously, you could press the button before stopping and the doors would only open when the train had completely stopped. I’ve noticed this on LIRR and ECW.
I'm pretty sure this can happen in real life on the 377s, I think it's something like under 6mph they can be opened.
On the LIRR M7's and on the 377 it also happens if you manually press the door open button on the cab/panel when below 5 mph, and lots of trains can do that in real life so I don't think it's a bug. It does that on both TSW 2020 and TSW2 btw.