Zalzalane (826)
Forge Camp: Mageddon (10390)
Mission: Possible But Not Probable (2478)
All three of these quests have odd interactions when using quest addons - the kill tracker when doing them will get stuck and not respond properly, which confuses the player who is unable to complete it until they disable their addon and discover it is just a bugged visual.
Core issue - quests that involve an additional objective such as killing a boss or other mob (1/1 required) breaks the kill tracking for other mobs in the quest
Zalzalane (826) Forge Camp: Mageddon (10390) Mission: Possible But Not Probable (2478)
All three of these quests have odd interactions when using quest addons - the kill tracker when doing them will get stuck and not respond properly, which confuses the player who is unable to complete it until they disable their addon and discover it is just a bugged visual.