Items such as Flawless Draenethyst Sphere and Imperfect Draenethyst Fragment causes Quest Fail Sound to constantly trigger on toons that are not high enough to accept the quest, while having said items in their inventory.

When I get these items, I send them to my lower toons until they level to the point they can use the items, and sometimes to sell on the AH. However while having Monomyth active on these lower toons, and trying to shuffle things in the bags on said toons, this action causes the Quest Fail Sound to activate. Played around with this a bit, and it happened every time I move 'any' item in my bags, not just the quest items. This also happens if you are at an auction house, selling items. Can get rather annoying hearing it over and over, every time you post something to sell.

Temporarily fixed with df73bfb

Thank you!