I thought this would be interesting, since it was so absurd and I'm fairly sure I've at least not personally come across it before, and a quick search of the subreddit didn't turn up anything either. I'm playing Fire and Sword, the Muscovy storyline, and am at the final stage where I'm Tsar (Stepan Razin, who is involved in the earlier parts of the questline, has despawned I think), and have to conquer the rest of the map. I've already eliminated the Cossacks and recently the Tatars, and pretty much immediately after the latter, Poland declared war on me (well, in-game it actually said Muscovy declared war on them, but I didn't order it, so idk). Then last night at one point I went a bit wtf, as when I was trying to enter Kiev, a town held by me personally, it gave me the siege options instead of the usual menu. The logs etc. still show me as ruler, I was still getting income, and if I successfully sneaked into town, I could manage the garrison troops etc.