pretty sure I encountered the royal chirin on chapter with Darwin.. currently "Marool Rules".
I just checked: Chapter VIII Marool Rules still have "sapphire atrox" (epic) as bonus fight.
And I think that chapters II, VII, X, XII, XIII, XIV are the same as before.
I'll check back on Chapter V, but I guess the book is messed again (it's strange that "Royal Chirin" is colored, so I should have met him before).
Edit: Chapter "Tricky Toxin" before chapter VI, now chapter V - the same beast "magic lycanda" (epic)