Sudden crash when making construction. Did not sync mods before starting opening existing sandbox.

factorio 1.1.22 latest updated 15, feb, 2021 now crashes either in menus before starting game or in the game itself. The third crash was while updating mods prior to launching a game. the factorio-current.log is attached.

Thanks. I was writing my last update while you were sending your reply. I will study your reply before asking further.

Thanks for the prompt response.

I am interested in learning the inner workings of signals and train stops. I cannot tell from the code how the new signals get set/cleared when a train stops at the smart-train-stop. Can you provide guidance as to how I should explore the script? Regards, Dark Matter Update: I found the code to upda...