(This is easier to stumble upon than it sounds, and should be fairly simple to fix.)
Must have at least enough PB's to fill a screen worth in Personal Books tab to reproduce this.
Create a new PB whose title begins with something nearer to the beginning of the alphabet than the topmost visible title when you've got your PB list scrolled all the way to the bottom.
Build book.
The book shows up at the end of the list with a Finished button next to it.
Click Finished.
The title seems to disappear from your Personal Books list, because it's been moved into alphabetical order, but the list doesn't scroll to show its new position.
Possible solutions: 1) Put the book in its correct alphabetical order before build starts so you never see it at the end of the list; or 2) Scroll the list to show the title in its new position after user clicks Finish. I would go for #2 if it's not too difficult because it's a bit odd seeing the new book out of alphabetical order even temporarily.
