Just purchased PageFlip and running into this problem. Using PageFlip 7.0.3 and DNN 7.2.1. We are also using the Turn JS and the Flip for HTML 5 option. I'm uploading a 257 page PDF fine, but when the book is displayed, the page numbers are out of order. I have finally determined that it has something to do with the sorting when you have over 99 pages.
Here is the way the pages are getting resorted:
1-10 are in order
Then jumps to 100-109 then to page 11
Back to 110-119 then goes to page 12
Jumps to 120-129 then goes to 13
etc.
When the page number reaches 257, then it picks up pages 26-99.
It's as if all page numbers with two digits have an invisible "0" at the end of them, which sorts them as if they were a 3 digit number. Page 10 becomes 100, page 110 and so on.
I could manually resort, but this is incredibly time consuming. I tried renaming the pages in Acrobat with leading zero's to make them all 3 digit numbers, but that didn't work. Anyone else have this experience or know of any solutions? Thanks.