[2023] PC crash while starting a journey.

Right click on ck3.exe , properties, compatibility. Tick "disable fullScreen optimisations" untick every other box in that dialog, Apply and exit.
Then in the launcher Game Settings menu, select fullScreen display mode, Vsync off, cap refresh rate at 60.


If those don't help:
DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/CK3/pdx_settings.txt .
From your Documents/Paradox Interactive/CK3/logs/ folder, attach here system.log , error.log , exceptions.log  

Tandruil9 said: However when my whole group started again and some of them created their own rulers it crashed once again.

The whole PC still? Or just a game crash this time?

"setting_framerate_cap"={
version=0
value="165"
}

Was it not possible to set this to 60? What we are trying to achieve here is restrict the game to 60hz ; what fps do you see just before it crashes?

Please report the temperatures of your CPU and video (GPU)
1/ before starting the game up and
2/ after say 10 minutes' play.
If your PC's vendor has given you no way of reading temperatures, install
SPEEDFAN http://www.almico.com/sfdownload.php  

Tandruil9 said: Only changing ingame and after restarting did the fps lock seem to work.

Are you only seeing fps of 60 or less in the game now?

Those temperatures are okay, so the issue is elsewhere.