The first time I noticed this there were several draugr, vampires, frost trolls and npc's crowded in the housecarl room in the basement of Proudsipe manor! After killing the hostiles various npc's, from different cities, gather in the basement of proudspire manor, and from time to time vapires or draugr spawn in the same location. This is my 5th play through and this is the first time anything like this has happened, its affecting my previous saves as well. I realise this seems crazy but its for real! Any chance somebody experienced anything similar and can you please advise on how to fix it? I'm running the game with the latest patch as well as all expansions and unofficial patches for them, bunch of mods as well. I already checked the comments of mods i installed recently and there is no mention of this. Thnx in advance.