8
Well, at this point I'd say to make them show up again but for future reference, when you want to make something not show up on certain pages or show up only on certain pages you need to click Edit on the block itself, and highlight the ones that you want it to show up on, or not highlight the one you want it to show up on.
"But what if they aren't next to each other or I want to take one out of the middle?"
(thought you might ask, because I asked once before on here)
Hold the CTRL key while you click and it will make those highlight, or take away the highlight.