Significant Crashes since last patch

My map is 156X267 which I know is huge but I had zero crashes (10 hours in) and just had 4 in the last few minutes (my first play since the patch. I am making a fantasy version of the real map of New England. LOVING it so far. Only request so far is a Hill hex (in addition to mountains) and auto zone for hills and mountains. The berkshires are killing me lol