Zombies naturally come to you when they see you.
But when you're on water, they don't see you, and so don't come to you.
MC-18147
Zombies not coming when player in water
Resolved
Duplicate
0
Jason Bienaimé
(Unassigned)
Unconfirmed
Snapshot 13w23b, Snapshot 13w24a, Snapshot 13w24b
Retrieved
They have been alerted by other zombies of something else, such as a villager or another player. Unable to reproduce in an environment free of villagers and other players.