Malphite cant use ult after vayne knockes him into a wall!

cant use ult after knockes him into a wall with her E.

This happened two times in a ranked game i har just 20 min ago.

After the stun from wore off i could not use R for about 1-2 seconds. this caused me to die two times more then i had to.

Riot plz fix

-Murzak