In patch V1.0.0.141 released on June 17, 2012, Riot fixed Veigar's stun: it used to only stun every 0.25 sec so that if a champion dashed through it, it had a chance to not stun the champion. The fix was to ensure that a champion dashing through Event Horizon is stunned in place.
But today, an enemy Riven, Graves and Ahri were all jumping in and out of my stun without getting stunned! So did they fixed Event Horizon or not?
