Achivement problem

[WOLF]

In achivement Left no pages unturned, It says finish chapter 1 with no pages left on floor. I blowed evry single one few times and still didnt get achivement. Anyone have same problem?

[[HYBRID BEING]]

I'm not sure why, but it looks to me that achievements may just not trigger sometimes. I believe i managed to get the achievement after i repeated the chapter 3 or 4 times. Still no luck with leaves or blueprints, nor any luck with getting Free Fall.
The only advice i can give is to scream at any object, closed gate and behind every wall since these items are overlayed by most objects in the game.