Ah okay, thanks a lot. Good to know. The ingame description for all these archievements are definately a little unclear and its odd that you are still able to retrieve the Wolfthing from Craigstead, isn´t it?
And shouldn´t Vision of the past: Steel and Fire not also trigger the Back to the past archievement? The Archievement just states you need to do a vision of the past.
But atleast it seems that the game is actually working as intended.