Riot fixed the missing Veigar Q sound when it doesn't kill the enemy this patch...
THANKS! (I'm talking about Final Boss Veigar btw)
I've reported this bug lately on EUW: http://boards.euw.leagueoflegends.com/en/c/suggestions-bug-reports-en/KrE6LYUQ-bug-final-boss-veigars-q-lost-its-non-fatal-sound-when-it-hits-an-enemy
Now it's back to normal, he also got his E quotes back "Would you kindly stop moving!?"