LUX_E_NAMEBUG

This may or may not be a bug i don't know,but i have encountered this twice already so i wanted to share this.Whenever i cast Lux's E and when i move my cursor over the spell when i want to recast it,it says this : Spell Not Found : game_spell_tooltip_LuxLightStrikeKugel

Could be a corrupted file on my PC but i highly doubt it,so i am reporting it as a bug.