I recorded a video: http://metal.elte.hu/~vandrus/edgar.avi. I was in the Library.
What is happening in the video:
1) I am trying to push the object without holding action button, but it got blocked on the lift. I saw it only with this lift and object so far.
If I hold the action button then it gets through, even without the lift being there. This is shown next.
2) Holding action button and pushing the object through the hole. This happens always everywhere not just in the Library.
3) Sometimes near the border of two different tiles if you hold action button and press back (pull) then holding forward (push, with the action button still held) you can push objects far away from you. This happens everywhere too.