To bypass the bug, leave the area, track a different quest, and re-enter the first quest's area without pre-tracking it. Red flag added to every tracked quest on zone map. World quest tracker does not mark adds that needs to be kiled or looted anymore.
The way that it works is that if you have the option enabled in the games Interface Options - 'Automatic Quest Tracking' then yes, it will auto track a quest with an objective once you OBTAIN the first item. Additionally, quests will not automatically be tracked by the default WoW quest tracker.
