I have 2 pages (that I've discovered so far) that do not have page numbers on them. I have already applied page numbering to the master pages, and all the other pages have page numbers. To show you this, I put the page numbers on a separate layer and hid all the other layers so the only thing you can see are the page numbers. I put the numbers on the bottom outside corners of each page. In the screenshot, on page 11 and 12, there are no page numbers, even though you can see them on the corners of the previous pages (you can't see the number but you can see something there, see red circles). I can't figure out why this happened and how to put the numbers back. The settings are already 'allow pages to shuffle', and the system knows its pages 11 and 12 but won't display the numbers.
EDIT I have found the solution thanks to Lucian, it was to go to the master pages, right click and select "Apply Master to Page..". However, I wanted to add some more detail because 1) I want to know and 2) might be useful for others.
Anyone know how and why this happened? Does it happen to new pages you ad after applying master pages to all pages? Say I have 100 pages and I apply the master page layout. Then I decide to add 2 more. Will this happen again to the 2 new pages?
Also, I found this effect before I fixed the problem: I was trying to add a watermark to all the pages by adding text to the master page when I found this on the 2 problematic pages. I put 2 lines of text on the master pages, on the top and bottom so it appears on each page. The screenshot shows the bottom text on the bottom half of the top page, and the top half of pages 11 and 12. It was very strange that only on those pages, part of the text has overlapping pages. Why is this? Do I have a second artboard or something I don't know about or can't see?
Note:This problem went away after I updated the "master page apply to" function, but would be nice to know why it happened.
Also the pages aren't blank, I just hid the layers to show the errors more clearly.