Besides being shifted out of order, this is mixing different comics.
The original "ChangeGPT" starts on page 653-804, and continues on page 2-560 with a couple pages from the intro randomly put out of order.
Pages 561-652 are like the first 1/3 of Sun, Sea, Swap Part 1 and starts skipping pages after page 644. Also randomly has the short 6 picture side character epilogue for Sun, Sea, Swap Part 3 thrown in at the end and as the first page.