I'm playing as Danish empire, and near the end of my campaign, I conquer almost all of Timurids castles, Pope control only Jerusalem, Venice control Medina and neighbour castles. When I'm trying to switch turn's (rebel turn), or to take Jerusalem, just to win campaign, game crashes. I'm playing 6.4 version, permanent watchtowers, arrows, I installed the game with " Guaranteed Working Install Guide for ss6.4 (with Pictures)", no sub-mods. Can anybody help me?