Using Crippling Strike (Darius) on Wukong as he uses Decoy causes Darius to get stuck in the attack

Played a game on 1/22/2016 (http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2075112808/32581419)

Played top vs Wukong. I noticed this 2 times. The first time I didnt catch the time but, the second time I did. At around the 17 min mark of the game was the second time this happened. Went in to attack wukong with a crippling strike and he used decoy. For the entire length of the decoy duration, darius just stands there. I cant move or attack. As soon as the decoy vanishes I have control over Darius again.