It shows you press the X button to take all, but the X button doesn't do anything. It's the A button.
#Opening chests with an Xbox controller displays the wrong button to accept rewards
ornate iron
Same applies in the level up screen when replacing an item
my guess is that it just uses playstation buttons based on Back having the circle
tidal matrix
Hi, can you please check if in settings you have the Gamepad Layout set to Automatic or Xbox? If it´s set to automatic, it might be Steam detecting the wrong input, if you manually change it to Xbox it should show the correct inputs. Sorry for the inconvenience 
