There was a bug that just happened in my ranked game where after a triple kill at about 35 minutes with super minions coming through, my Q spell (Katarina's 1st spell) and my R spell (Katarina's ultimate) stopped working. It wasn't my keyboard because i checked to see if it was working and it was. I restarted my client and that didn't work either, so i was stuck to only use my other two spells and eventually lost the game.
Did you try to relog from the game sometimes its a bug which can be resolved by logging out of the game and back in.
Have had this happen to me with more than one champion before.
Usuaully resolved when i execute myself (or die)but its super annoying
I just posted same bug issue about Katarina. Q, R, and B went down on my end. Around 30 was when Q had 'more of a delay' and by 45, Q was inoperable (though the range circle popped up just fine like I COULD use it...) The longer the game goes, the more buttons go away, especially if you're on defense. Dying didn't fix mine, nor did a relog. But maybe it's just on my end.
i had exactly the same bug for 3 games in a row with restarting league/computer someone should really look into it.
