GAMEPLAY. Zed W Quick Cast Bug

I don't know if anyone else has had this issue or not, but when i was playing zed earlier his W (Living Shadow) was second activating instantly by itself upon first cast. (When i would press W once it would place the shadow and instantly swap me) This would happen every time i would cast. so it should be easy to reproduce if needed to test it. In order to check if this was a problem or if my key board was acting up i began Typing "W" in the chat with no problems. then went on to inspect by setting my W to "normal cast" and it acted fine. once i swapped it back to Quick Cast (without indicator) i still had the same issue. I was using the championship skin, dont know if that plays any part in it or not, just trying to give more information on what could be the cause. Just thought id try and bring this to your attention. Sincerely, A Zed Main :D