During a dynamis run in Buburimu today along with a friend in a party, we noticed that our drops were low. I then checked the treasure pool before and after acquiring 4 t.shells in the pool. Those 4 t.shells displaced 4 o.pieces in the pooled treasure, which mysteriously vanished - None of the o.pieces were awarded to anyone in the party. We checked it again after acquiring another few pieces of currency, and again some items got displaced and were not distributed amongst the party.