heard zombie brand voicelines everywhere on the map

from start to finish i could hear the zombie brand as if i had vision on him, even though i was toplane and he was mid. "everyday i'm shambling"

i've only had the problem once, so i wouldn't be able to say that it's only ZOMBIE brand and if it was only if i had vision on him on the map, but it certainly was a scare anytime i would suddenly hear him as if he stood next to me even though he was somewhere else. This occurred in Ranked.

Sorry English isn't my first language