Это ваше личное мнение...Такого быть не должно
http://forum.wowcircle.com/showthread.php?t=340435 - уже есть подобная тема..
Репорт ошибочен, можно закрывать.
http://www.wowwiki.com/Vanish?oldid=2389183
Removes effects that allow other players to see the rogue's location, such as Hunter's Mark and Mind Vision.If you are being chased by a hunter and you have not yet been hit with Serpent Sting, Vanish will remove Hunter's Mark and allow you to get away.