We play LAN games with friends against AI, but sometimes the game crashes for the host, and we have to restore the game. However, when we do so, the AI becomes completely disabled. Its existing orders continue to get carried out, but it creates no new units, doesn't move idle villagers, reseed farms, etc. Nothing.

One thing that I suspect is that since the host is crashing, it doesn't get to save the game. So it obtains a copy from one of the other players, and hosts using that one. Is this the cause of the issue? Does only the host have the ability to save a game against AI? Is there any way to possibly circumvent this issue?

From what I can tell, this is not an issue with the regular HD AI, but I could be wrong. I think we will play a few games against HD AI to see if we encounter the same issue.

PS. I also have a feeling that ResAI is causing the crashes. Especially on certain maps, where it always crashes within the first 15 seconds. (HD AI works fine). But sadly I don't remember what map it was right now, I'll be sure to note it down if it happens again.