Mojira Archive
MCPE-81361

AI pathfinding can't distinguish water from a full solid block

When mobs that walk (villagers, foxes, drowned, or more related) find a route over water, they assume that water is a full solid block. This leads them to believe that a path through water to an area one block high is valid, leading to cause MCPE-77646.

Video Example

https://youtu.be/zjC0WgtGHcg