The “Clear [Diffioculty] Stages” epic quest only seem to count if you clear a stage that has never been cleared before. Repeating stages no longer counts like it used to.
This makes the quests impossible to finish (I have 36 uncleared heroic stages left in the game, but need 40+ to complete quest). Daily quests only count against Normal stages, while the daily Evo quests that actually have higher difficulties don’t count against any epic quest. ID: ixtxvb (if that helps).