When you are in a group there are often loot drops left on the ground all blue and inviting but not clickable
Happens all the time.
Scenario 1: Everyone stands back and lets the tank pickup all the loot ching ching ching. All is hunky dory and the tank gets all the money but the loot drop is shared in the Pass/Greed/Need dodah.
Scenario 2: Everyone clicks on the loot, one player clicks just before another and goes to click the Loot.Take All button but there are 2 confirmation boxes.
If you click the Take All button before you click the Greed button (which is now behind) then the second Pass/Need/Greed confirm box is not displayed and the loot bag stays on the ground.
I don't know if the loot is eventually distributed but probably not