The game crashing in Aleroth is worrying. It "shouldn't" do that so I have no idea why it is. Maybe Raze will know, that's more his sort of thing.
A little info that could be the problem : It started happening after I created 2 more save files. I created a save file before I enterned Hall of Echoes and a save file before going to save Ygerna. The reason being that I still had some unfinished side quests before I entered the Hall of Echoes and that maybe I would like to go back and finish them. The other one was just to see if there is a different ending. But since I am playing the expansion now I can't really tell which is the issue here, the saves or the expansion? Maybe I should remove those 2 save files from the game's folder and see if the issue is still there.
EDIT : Forgot to say that the game first crashed when I reached Aleroth city and from there I tried to load back to Hall of Echoes. The crashes I get now are when I try to enter or get out of a building during the loading screen.
Edit 2 : Should I choose ' Flames of Vengeance ' from the menu instead? I never chose it, basically the game switched automatically after I finished Ego Draconis.