Once inside, if you assemble all the posts into the elevator wheel, but warp or leave before you actually turn the wheel - you're done. One of the posts will vanish off of the wheel, never to be found again.
The only reason I am putting this as a new post is because I went though tons of pages here, and had to dig to find a reference to this glitch. Since the answer I found was "start over, or wait for a patch" I thought I would give the next poor guy a better chance at knowing this would happen before he went in there.
Yes.. The Brewery. That is why I am digging through these forums. I found all the posts and was then notified that I could access the elevator ( I am assuming that is what opens when you spin the completed wheel.) I got turned around and walked out the door. I came right back in, and now I am missing a post for the wheel, and I am assuming since I have combed it 5-6 times to make dang sure, and the fact that now I see others having the same issue... I am screwed. I am really not happy that there is not a fix for this.