I was playing a game the other day and I was segueing a city on an island, there was like 9 tiles on the other side of the "ocean"(it was a tiny map and that divide was the new world) the AI moved a boat into that tile and my siege engines disappeared. one of my stream guests thinks it might be bc the ai was in an era that didn't have the tech. so I'm not sure if its a bug or not. has anyone else experienced this?