Reroll elixir bug

[Otawaazavie]

Many times while I have the loot elixir and it is activated on boss loot, it rerolls to rare item. So since bosses don't drop common items the only possibility left is I would get an elite copper chest if I hadn't used the elixir and I'm on elite map. Elite Copper chests in worst case may give me 3 rare items instead of the rerolled rare. I guess the same happens with silver chests that reroll to epic. It should be 1. common (reroll) rare or epic or chests or legendary. 2. Rare (reroll) epic or chests or legendary. 3. Epic (reroll) chests or legendary. 4. Locked crate (reroll) elite copper chest or elite silver or elite golden chest or legendary and so on. Please take that into consideration. Thanks in advance