Just played a Nazeebo game. 14:57 into the game, I used my W (zombie wall) which a second later was blown up by Junkrat’s mine. As a result the zombies were scattered around the area, and the zombies didn’t disappear or start running for the next minute or two.
I was unable to use my W during that time (a minute or two). I regained that ability after the enemy team killed my scattered zombies.