I just got to level 45 and i went to the training room (pressing F12) to do the last 4 training quests. On both the skill sets, shadow and frost, i can't do the "enchance party - soulburn" one. The game tells me to double tab in order to proc the soulburn, but the game always says im doing the combo the wrong way in the second tab. Am i doing something wrong or is it bugged? Help i am really tilted.