[Gameplay] Warwick Ult Is Bugged!

I was playing a game against a Warwick today and I was playing Master Yi. So it seems that Warwick ulted me and then Warwick got stunned. I tried to move but I realized that for some reason I was still suppressed by the Warwick ult. This happened several times and I was still suppressed even when Warwick was cc'ed or even dead! This was very frustrating as I died many times being suppressed.