Zilean Ult Glitch

I was playing with my friend who mains Zilean today. I was in a sticky situation and he ulted me not even a second before i died, but even though he ulted me i still died, and my screen went a light gray, because Zilean's ult makes your screen white, and dying makes it gray. I saw the hourglasses spin around me for a split second, and my corpse had the revive wind-like animation go around it, but i didn't revive. There was nothing on the forums, so i decided to make the first post about it.