Another one;
When you...
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Achieve the second puzzle, the river, the plant south of the berrybush will heal, and then will appear the butterlies

Then, if you pause the game, the butterflies will still move. Also, if you switch the screen( from the in-game screen to, for example the main menu, mauseleum or collectice screen,ect.)when you return, the butterflies will re-appear from the top of the mausoleum entrace to their "real" position.
This still happens even after you complete the 5th puzzle.