So I took the above advice and tried restarting the game before installing the patch.. unfortunately, this did not work. So I then proceeded to download the newest patch and then reverted to a safe prior to the critical error. This worked for a total of two turns before I unfortunately received the ...

Have been playing this game without any errors and this is the first time something like this has happened. While trying to move to next turn, a critical error occurred. I've provided the main log and the save.