The issue where the game "hangs" during an AI's turn has been repeatedly reported in this forum. The first screen snapshot below shows that I reported this issue back on July 16, 2021 and there are other posts from other players reporting the same issue. While I recognize the right of the devs to prioritize the issues that they are going to work on, I think it is disingenuous to pretend that tchchr's post is something new. While it does not happen in every game I play, it does happen in the majority of the games. When it does happen, it seems like it happens multiple times within about a 20 turn period of time.
When it does happen, the only thing you can do is kill the process running the game, restart the game, load the most recent save, and continue playing from there. This is why I set the "Auto-Save" option "on" and set the "Turns Before Auto-Save" option to "1". By doing that, I lose as little progress as possible. I also try to remember to save the game at the end of every turn before clicking on the icon to move to the next turn. I have also found that, when I restart the game and load the most recent save file, the game does not hang on the same AI on the same turn. That makes it useless to send you a save file, since I have not been able to make the game hang on demand.
With all due respect to the people working on the game, this issue has been in the game for at least a year and a half and it is the kind of issue that will cause many new players to believe that the game is not ready for prime time. I believe that issues like this that affect players perception of the quality of the game software should be at the top of your priority list. This is just my opinion, but I believe you created this forum because you wanted to get feedback from players so please take this post as well-intended feedback from someone who has been playing this game since the first test version was released and who has submitted many posts reporting issues that need to be addressed. The fact that I have been playing and posting for so long should indicate that I love the game and my motivations are for you to make it better.