Summary:

Endermen teleport beyond the expected 32-block range in the Y direction when they come into contact with water, instead of teleporting within a 64x64x64 cube.

Description:

In Minecraft 1.21, Endermen should teleport to a valid location within a 64x64x64 cube when they touch water. However, they currently teleport to any Y-coordinate within a 32-block (square) radius column, often leading to them moving further than intended. This incorrect teleportation behavior disrupts gameplay, especially in setups like mob farms where precise/no teleportation is critical.

Steps to Reproduce:

1. Spawn Endermen: Summon or locate Endermen in any overworld or custom-built area.
2. Create Water Source: Set up a water source nearby or use a water bucket to create water flow.
3. Force Contact: Place the water bucket on or near the Endermen so that water flows into them.
4. Observe Behavior: Notice that the Endermen teleport beyond the expected range in the Y direction instead of teleporting within the correct 64x64x64 area.

Expected Behavior:

Endermen should teleport to a valid nearby location within a 64x64x64 cube when they touch water. Their teleportation should not exceed 32 blocks in any direction, including the Y-axis.

Actual Behavior:

Endermen teleport to any Y-coordinate within a 32-block radius column, resulting in them moving further than the intended 32 blocks in the Y direction.

Frequency:

Always (100% reproducibility)

Version:

Minecraft 1.21