Previously to te Akathat Update you could just press the Use Key once to pick up a Chaos Chest. Now you have to HOLD the use key to pick it up. Like its a secondary function. All other spawnable objects by the game like Pap, Ashes, Barrels are working correctly only Chaos Chests not have to be HELD
This was a change that all multi item inventory items such as chests, bags, etc require a hold to pick up. This is by design not a bug.