The Room Chapter 3 folding key

I am playing The Room and am now in chapter 3. In this chapter is a folding key which has to be unfolded to the proper configuration before it will fit in the space for it. I know I have got it right but it will not fit. Has anyone else played this game and experienced this problem?

Thanks for any help.

I saw one person on the Steam discussion forum saying they were having the same problem and it turned out that they were using the wrong key pieces - is this a possibility for you?

If not, maybe another player will be able to give you some advice on this, as I can only refer you to a walkthrough. This website here has a walkthrough for the game.

I see only 1 folded key in this chapter and you have to use it here, probally you have switch 2 piece: the top and the left one.
They look the same but there are differences, look at the screenshots in that walkthrough.

I must be blind! I finally got the right piece and it worked. Thanks for all the replies and the website with a good walkthrough.

I hope you enjoy the rest of the game.