Hey, I've had a recurrent crashing issue based on one particular world map premade world, where the game crashes after a certain number of turns. I've attached a save file that should crash as soon as the turn passes. I can try and log more crashed save files if needed - I kept accidentally overwriting them with other autosaves.
The tech stagnation should be set to 126 instead of 10, if that's a relevant concern (yes I am one of those people).
I'll try playing on a different premade world for now, and see if that decides it likes to crash also.
EDIT: Added another save file that should crash right after you hit enter.