Don't know if this a common bug or not but was checking grimoire and it stated I still need the "WANTED: High Servitor" bounty for 5 grimoire. I know for a fact that I have done these bounties "Wanted: Mecher Orbiks-11" & "Wanted: Kaliks-12" This is probably bugged on my account. Can I get a bungie official to check this out as I am trying to max grimoire and this is impeding my attempts.