After resetting the game the Placable treasures aren’t registered in the coffer, they are still physically there but until I pick them up and put them down again they don’t show up. Also with certain Placable treasures such as the green horn it only registers one even after I pick and replace all of them.
Welcome to the Forum Exile. Hopefully someone with experience can help you with this. PS5 player here have not tried new purge yet might tonight. On Playstation some issues with single player might also be with Xbox. Good luck @Papadom.