OK!!! I think this time i have a bug!...so after a while of playing my trade/transport ships started to have a ghost unit taking up space ( after a normaly functional first naval invasion it started to do this ) and later they stoped even unloading units they float up to land but dont unload units ( after a reload it worked again but left a ghost unit behind...usually a skirmisher) after like 20 mins of this happening my save game crashed...now i cant reload the world...