Update: I'm getting the desync problem, only affecting the Linux users, in a 0.18.22 game with Rampant and no Krastorio now as well. No crash so far, though; I'm trying to run the game in Valgrind to check for any untoward memory accesses to test my theory, but startup is taking on the order of hours.

Well, this has been a bit of a trip. Sorry for the lengthy story; I feel it's important for understanding the circumstances, and there hopefully will be enough technical meat to provide concrete leads to follow as well. I'm playing a long 4-player multiplayer game with a few mods, including in parti...