When you are in a Team in Sauron`s Eye, Orc Eye or Dwarf Eye or any that follow. there is a counter that tells you how many Blue Demon Eye (1-Turn lvl, 1 of the tower), Violet Demon Eye (2-Turn, level 2 of the tower), Orange Demon Eye (3-Turn, level 3 of the tower) you have been credited. If I kill a boss everyone in the team will be credited 200 of the materials but your backpack will show you have collected none. You have to physically go to the bosses location and pick up the drops on the floor (no different than state boss). You also must be on that level when the boss is killed or you will not get the credit at all.