When trying to loot a box, right mouse click or H doesn't work. Items have to be dragged and dropped one by one into inventory manually. Aurora stated that "Loot All" button worked but I think I tried that and it didn't work for me, I'll try that again (or maybe I tried auto loot which didn't work). Also because of this some people have thought they didn't do enough damage to loot. Havent heard a problem on Pure so assuming it's an instancing problem. Then again there are no reports of same bug on Survival/Scourge.