Warpath skill will not stop channeling after releasing the key, even if unequipping the weapon while channeling, it will keep doing the animation, if running out of mana while channeling, it will keep doing the animation without dealing damage to enemies until mana is positive again. Only way to stop the animation is by casting a different skill.
Lunge skill does not work. It will not cast most of the time, the only time I manage to cast it is after i repeatedly click the Lunge button and when it casts, there is a chance that my character freezes at the beginning of the animation (in the Lunge-attack position).