Board Thread:The Quarters - Q & A/@comment-213.186.50.98-20141015143110/@comment-24150802-20141016031440

Regardless of what's going wrong (I haven't looked into it because of lack of time), marking it completed like this is probably not what you want to do because it will not give you any gold, experience, or mana. It merely changes the state of the task rather than mimicking the action of ticking off a task. To mark a task as complete, you probably want to use "POST /api/v2/user/tasks/{id}/{direction}" where direction is "up" or "down". One direction will mark the task completed (and give you gold, etc) and the other will mark it uncompleted; I can't recall which is which (so little sleep last night!) but a couple of quick experiments should let you work it out.