[2023] CK3 won't launch at all (Patch 1.9/MacOS Mojave 10.14.6 /exit code null)

My guess is the new patch has a problem with that old MacOS version, which was the minimum requirement back at game launch time 3 years ago; maybe QA simply don't have the bandwidth to test on every outdated OS version for every platform!

Would you consider updating to a later MacOS version?  

Thanks, I'll pass that back to Paradox next week.  

Are you sure of that? My 2017 iMac can run 13.3.1 (a) perfectly fine. What actual model of Mac do you have?  

Hello there! With your help, we have now confirmed the issue and added it to our database!  

Hello! It's not my area of expertise so I can't provide more details, but I do understand your frustration, but I can assure you that we are looking into it!