Quest "The Feast" remains active but uncompletable after becoming Hostile in higher difficulty

Description: I have the quest “The Feast” active in Normal difficulty. However, after choosing to become Hostile with Barrowholm in Ultimate difficulty, the reputation change correctly reflected across all difficulties. Now Scorv Egdenor is hostile in Normal, making it impossible to turn in the quest. The quest remains in my log with no way to fail or remove it.

Expected behavior: Quests for a specific faction should either be automatically failed or hidden if that faction becomes Hostile globally.