sometime when I cast Alpha strike on master Yi, the cooldown doesnt show and fool me into thinking the skill is still fresh to cast, but when I try it doesnt work until the cooldown wears off normaly.
and no it's not when I use my ults and it refreshes.
additionnal info: I use Assassin Master Yi skin
Yup you are not the only one it happens to myself as well. It is a bug that Riot will fix eventually (I hope).
Happens to me all the time.
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