I happened several times the past games I had with Kai'sa that evolving my abilites actually prevented me from putting further in my abilities. The border of the evolve icon always remained above the HUD afterwards. I happened both after I evolved an ability by clicking on it and with the keyboard. I don't what causes this but this happens for several weeks and hasn't been fixed in any of the past patches. Please get into this already because this seriously hurts the game play, especially if it happens on the first evolve.
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