I was driving the Acela today from Boston to Providence and UE crashed to desktop approaching Mansfield. I've had a few crashes on this route lately and thought it was due to playing with Lossloss Scaling.

As an experiment, removed all mods from C:\Program Files (x86)\Steam\steamapps\common\Train Sim World 4\WindowsNoEditor\TS2Prototype\Content\DLC and Godmod.sav from C:\Users\bgmca\OneDrive\Documents\My Games\TrainSimWorld4\Saved\SaveGames and drove the Acela aagain. Got through the scenario.

Surprisingly it doesn't look too bad, and I was getting nearly steady 60fps on Ultra settings.