Bugs, fixes and workarounds for A Machine for Pigs - including FOV and surround sound

[colgatesandwich]

At first playthrough I got stuck in the room behind the stuffed bear in the mansion. When entering the room I pulled back the bear towards in the original position, and the secret door closed in front of me again. I was able to get out though.. I could see the 'curserhand' change when pointing over the left crack of the door, I then managed to push it back so it opens.

I'm posting this as a bug since i thought it was scripted that the door would lock behind me when i turned the valve, and i spent about 20 minutes figuring out what to do.. until i reloaded at an earlier state.