Re: Multiple quests not completing/no achievements PC

I have couple that the game won't let me finish:

Hinterlands:

Business arrangements: I confronted Tanner but I still have the quest diamond and whenever I talke to her now my only option is to say goodbye.

Letter From a Lover: the diamond shoes me where to go but when I go to the exact area nothing happens

Also, I don't know what quest this is but my game has had this up on my screen for forever or at least the last 20+ hrs of playing: "FIND A MISSING KEY" It says i need to gather 3 statues to access a vault.  I have opened every current quest I have an cannot find what this belongs to.  Its like I have this quest as active because it shows on my screen like I am working this quest now.  When I mark other quests as active this one just slides beneath my instructions for my active quest.