I run the game in ian mode and enabling "god mode" doesn't crash it. Hovering over an adjacent province doesn't crash it either at the moment as I haven't yet set any neighbours for the provinces. I've tried commenting out the new provinces in their entirety and reverting to an older map and it's still the same. Tested this as different factions as well. It crashes every time I end the turn. Loading up from the (unfinished) high startpos file eliminates the crash. I suppose I'll need to trawl through the early.txt file for typos.