I have encountered an issue not mentioned in other threads on this problematic quest sequence. Two of my characters completed all quests for A Forest Without Frontiers, thus completing the deed The Stewards of Fangorn. However, the wrapper quest remains in their quest logs with the note, "Talk to Quickbeam's Huorn". That is impossible since the requisite whistle was removed from their bags. Is this simply broken, or is there some trick to completing the quest?