There is a method to remove all Coastal Lowland tiles in the middle of a game if it crashes on the turn of Sea Rising, see here.You can still play on smaller region of the Giant or Largest Earth maps, just make sure it's not larger than 'Enormous'.Remember to always send the crash report if asked for by the Firaxis Crash Reporter.
WARNING: MAP SIZES > ENORMOUS = LATE GAME CRASHES WITH GS PATCH
