When you place a sarcophagus it disappears for you client side if there's not room for the right block since it places left to right. Kinda wish they placed a block farther away from player like beds(but facing player) for consistency but that's unrelated. Also the piston noise is so annoying, miss the old sarcophagus opening noise but that's even more unrelated
Minecraft version: 1.16.5
Atum version: Atum-1.16.5-2.2.0