Well, the title says it all, in the Acela, you can unlock the doors via the shortcuts while the train is in motion. Seems like a common bug at launch (Bremen, Edinburgh), so raises the question why it happens the third release in a row.
I could also do this with the exterior camera view (I never tried shortcuts when I noticed it) on the acs-64 (Boston sprinter version) not sure whether this could occur before XSX
