Yesterday's maintenance notes included the following: "Fixed an issue where the Windwalk quest items would not be consumed when completing the quests."
However, it seems this issue is not fixed as I just finished the quests that require a dragon bone inscription and serpent calling bell and while I did have to obtain them to complete the quest, they were not consumed in the process. While it's not the only change mentioned in the maintenance notes that didn't go through, I thought I'd mention it