[MC-157055] Mobs can't jump out of flowing water that is 4 or 5 blocks long

When a mob is at the end of a flowing water steam that is 5 blocks long (including the source block), they try to get out but don't jump to try and get out. This also occurs with 4 block long streams, however, it is less consistent. I've noticed through testing that they can eventually escape after several minutes.

Note: This does not affect all mobs. It seems to affect villagers (+ variants), chickens, creepers, cows and goats.

To reproduce, setup a stream as pictured and spawn a mob at the end:

[media]

Attachments

2024-09-29 20-15-59.mp4

Comments 4

Dion Thompson 2019-09-04T10:51:29Z

I can also confirm this happens on 1.13.2 & 1.13.1. It also seems to be for flowing water blocks with a 4+ block length and affects mobs such as zombies, creepers and skeletons.

ampolive 2021-07-28T22:11:44Z

Cannot reproduce in 1.17.1.

[Mod] Jingy 2024-09-27T16:28:30Z

Cannot reproduce with water that is 4 blocks long, only 5. I have updated the issue accordingly.

sof 2024-09-29T10:33:10Z

I've attached a video showing that it's still relevant for 4 blocks (

[media]

). Although, it's not consistent and you may have to spawn the villager multiple times. I'd also like to request ownership as the reporter hasn't been active in 5 years.