20 slot fractal uncommon equipment box
This is true of every bag with special properties: the sorting they do is done on item acquisition, not via the compact function. (Should it be this way? Maybe not, but it’s very convenient for being able to place items so that you always know where they are, e.g. consumables or alternative weapon sets that you want to swap into quickly.)
John Smith: “you should kill monsters, because killing monsters is awesome.”