Not sure this new development in path finding has any relevance for Factorio, but it's an interesting read.
Finally, a Fast Algorithm for Shortest Paths on Negative Graphs
https://www.quantamagazine.org/finally- ... -20230118/

And, of course, today I cannot reproduce it. But it did happen...
I've attached the config.ini that resulted from the "bug". I cannot see anything helpful, but maybe you can.
Anyway...

Factorio [1.1.35] (build 58756, win64, Steam); Windows 10 21H1 (x64), While playing a game, I went into GAME MENU | SETTINGS | CONTROLS and accidentally hit the red "Reset" button (reverting 43 custom shortcuts), and immediately hit ESC (Escape) key (I thought I was in the search box.) The...