As Ashley becomes separated from Leon in Resident Evil 4 Remake, players have to solve several puzzles to progress through the story, including one where lanterns show phases of the moon. An important item called the Salazar Family Insignia is locked inside the mausoleum area in Chapter 9's castle section. In order to reach the Library area, players have to figure out which lanterns must go on which pedestals surrounding the stone structure in the central part of this crypt.

https://screenrant.com/moon-lantern-puzzle-resident-evil-4-remake/