Eh, just a feeling, but is there a page missing between page 18 and 22?
Possibly a page between page 21 and 22, since the title on top of page 21 is usually only on the left-side page, which should make it a correct page, but judging from the margin, page 22 should also be a left-side page.
And all the other pages after page 22 align correctly based on their margin if you treat page 22 as the left-side page.
Then again, the dialogues flow seamlessly, and I don't have access to raw, so, eh.it's now fixed