[2022] Game crashes after 1-2 hours when autosaving

There's another thread here on this repeated error:

[01:16:19][jomini_script_system.cpp:209]: Script system error!
Error: Event target link 'previous_holder' returned an unset scope
Script location: file: common/achievements/ep1_achievements.txt line: 308

which I'm sure is causing the problem. If you see it posted already in the Bug Reports forum here, please add to that thread. Otherwise make a ne wthread there, and add those files plus an affected save game file.

Sorry for that problem!  

ElPwnz0rro said: Could this be some memory related issue?

It's not impossible. Do you see the game's memory usage climb as the problem occurs?  

Is it approaching full though?

If so, try unloading every other app you can before starting the game, AND increase your Windows Paging file to say 32gb. Any better?  

Probably to some degree, but it ought to cease climbing at some point. Does it?  

As I say above, I suspect that repeated error is causing the apparent memory leak. Have you added that detail to the Bug Reports on the issue?