[2021] Stellaris Date Crash Error [Mac]

highscore07 said: Termination Signal: Illegal instruction: 4

That's a pretty serious bug, if it's a bug. Are there any mods involved here?

Can you try that save on a Windows machine?  

Illegal instruction means there is a command in an executable that is not valid for the CPU to interpret. That's a pretty unlikely bug to get through any development process!

It tells us nothing about where the problem is or how to avoid it.

If you have a save game file that reliably shows this problem, please attach it here, preferably from just before the crash happens. I can test it on my iMac and Windows machines.  

That crashes on my iMac but not my Windows machine. So I guess it may be an issue with Big Sur.

If you can get access to any Windows machine just run the game past that date, then you can probably move back to the Mac.

As for the bug can you make a new thread in Bug Reports forum here please, attach that save and make it clear the crash happens on MacOS only.

Sorry for that probem!