Loot Drops not working in Poe2

I can't pick up or see any loot drops if I kill creature. I know something is there because I have loot filter on.

If you're on PC, perhaps you pressed "Z". It hides all item boxes. You can press "Z" again to reshow item boxes.
I frequently use the feature if I am fighting something tanky near loot so that I don't accidently perform my action instead of picking up loot.. :D