This is a computer movement CTD for Arche Selukids in Winter of 243BC. I know you keep saying it's virtually impossible to find it. But what are your debug methods? Does RTW print error reports or can you make it print all the movements for the computer, etc..? Also can't you just show all of the map and watch AI movements with a keen eye, then go back to before the CTD and check at what point the error occurs.