I did go to the shadow cursed land but got away at once, so that's the bland reason.. really ?! How on hell can i now get back to my save before entering that area ?! That's quite frustrating, there's no way to undo such an important change in the game, i'll never get it..
Well the game does warn you that if you leave the area that you will miss out on quests. Not sure what more you want the game to do.
Maybe you accidentally clicked through the warning without seeing it?
