I did some looking into this and in single player you can turn on the terrain visibility and the games that crash the AI doesn't do much. The AI basically takes one point and then stagnates. Those games crash several minutes later.
On a flip side what did you do to the AI? In the games I have managed that did not crash the AI is now building Dreadnaughts basically at the start. The current state of the game is either an AI that doesn't do anything 70% of the time, an AI that seems to have unlimited resources 25% of the time and the old AI 5% of the time.