Jikoo
commented
4 years ago Ah, Craftbukkit's inventory tracking implementation isn't being updated properly because the inventory has already been changed. Just to be on the safe side we'll also remove from the listing on Mojang's side too, though that's clearly the CB side - Mojang uses a Set.
When a Player has silentchest enabled, closing a chest will not remove the Player from the List of InventoryViewers. Any time he opens the chest again, he will be added to the List again, closing does not remove him.
This causes some problems: The List will grow indefinitely, Plugins can't keep track of who has an inventory opened, Also when sneaking and opening a chest, it will stay visually open forever.