[u][b]An Entire Exotic Armor Piece is unobtainable and Bungie has not acknowledged the issue[/b][/u] The Warlock exotic helmet "Dawn Chorus" is still unobtainable due to a bug were it is not dropping in the loot pool from legendary lost sectors or any other source. Every other exotic armor piece on all classes have been unlocked, yet this one still remains locked due to a bug. This issue has been in the game for multiple seasons and has not been acknowledged by Bungie in any of their recent "Known Issues" posts. All expansions and possible game-related content purchases have been made, and other exotics from the same release window are already obtained. This is an exotic that is physically impossible to get that Bungie has not acknowledged.