So... I killed the TOUGH Archgriffin, looted the key off the guy's body on it's nest, opened the chest nearby with it and... The quest doesn't clear. Anyone having this problem?

dont remember this quest, did you loot any notes? I know some theasure quests isnt completable if you loot chest before reading notes.

I did read the note as the objective said so. Now the chest is already looted and the quest is asking me to loot it... Sigh.