Kingdom Hearts II Kingdom Hearts II Final Mix Puzzles

So i'm doing the edge puzzle and I have a internet guide that say's what i need-
1) Timeless River #2
2) Atlantica #1
3) Atlantica #2
4) Port Royal #4
5) Agrabah #2
6) Agrabah #3
7) Agrabah #8
8) Halloween #6
9) Twilight Town #3
10) Twilight Town #4
11) Hollow Bastion #3
12) Land of Dragons #3

And yet I have all of them but i'm missing a piece on the middle top left(there are four on each row and it would be the one second going up and down). I checked my journal and everything and it says i have those.
So what one am i missing?