First mission, after I get the bow and when you first hack... I hack the damn thing and the door stays shut!
I've already just waited here to get the game which I pre-ordered (Collector's Edition), I get it late because I don't live int he 'Right' country and now the freaking thing doesn't work!

This is a known issue. Please reset your hacking keybind to the "F" key for this specific part of the game.

Hm... doesn't work for me. You mean with "hacking" keybind the "vision" key, correct? because there's no hacking key, at least.