Supraworld Solver's Book Achievement with only 16 Solver Pages, Bug or Not? (Read Description Guide)

Pause at 0:00 to see the achievement, i wasn't recording because i didn't expect the achievement to appear after 16 pages, instead of 17 pages. I managed to hit record right after it appeared. So for Solver's Book Achivement, you need to collect all Solver's Pages - Most Are In Town and some are at the Dark Area between town and castle, and one is inside bed drawer. #supraworld #supraland #achievement