If you're in a puzzle and use the mouse wheel and then exit the puzzle, you'll find the pages of puzzles has changed.
For instance open a puzzle in the journal, use the mouse wheel, then exit that puzzle. You're now on a different page in the journal.
I'm betting this gets fixed when using the mouse wheel in a puzzle has meaning.
If you're in a puzzle and use the mouse wheel and then exit the puzzle, you'll find the pages of puzzles has changed. For instance open a puzzle in the journal, use the mouse wheel, then exit that puzzle. You're now on a different page in the journal. I'm betting this gets fixed when using the mouse wheel in a puzzle has meaning.