Video example of chicken following you
If you try to get a chicken to follow you and there's an obstacle 1.5 blocks high, the chicken will try to jump over it like it's 1 block high.
1) Get a chicken to follow you with a seed
2) Get behind an obstacle 1.5 blocks high
3) Chicken will try to jump over it (which is not intended)
Video of chickens trying to jump over 1.5 high blocks obstacle when trying to wander away
When a chicken tries to wander away it seems to ignore the slab on its way.
1) Get some chickens in a box with at least one wall 1.5 blocks high (it doesn't work when there are 5 or more snow layers on the block. Video example)
2) Wait until one of them tries to wander away or hit them so they'll try to run away
3) Some chickens (or the chicken you hit) will start jumping randomly
UPD: it works with any mob. Passive mobs, Hostile mobs
UPD2: mobs still try to jump over an obstacle even when there are more lower-half slabs above (screenshot 'ignoring lower half slabs')
From what I can see, this is a pathfinding algorythm problem
Linked issues
is duplicated by
MC-147299
Mobs will try to jump one and a half blocks
MC-148712
Baby villagers will try jump over a 1.5 block tall windows in the desert houses.
MC-150742
Villagers try to jump on top of blocks which have half blocks on them.
MC-189850
Animals seems to think they can find a path to unreachable places
MC-238150
The Chicken,baby sheep keeps trying to jump out of the stone wall.
MC-238639
Chickens and some baby animals keep trying to jump out of the stone wall.
Attachments
Comments
migrated
migrated
Can't reproduce.
migrated
Can't reproduce.
dagreenkat
Able to reproduce. Chickens need to be following you beforehand and that can't be "broken" (i.e. by switching off seeds and then back to them once in position) for the chicken to continue attempting to jump over. Helps if looking at the slab block or being 1 block above chickens while trying to recreate but is possible without.
qwerty23495
See MC-92466
migrated
That's a different issue, mobs didn't behave like that in 1.12.2.
migrated
That's a different issue, mobs didn't behave like that in 1.12.2.
migrated
I have encountered the same issue with sheep (only tested with them) in 19w09a and previous snapshots as well. I have a simple flat field with a 1.5 block high wall and they jump on their own without following a player.
[media]
migrated
I have encountered the same issue with sheep (only tested with them) in 19w09a and previous snapshots as well. I have a simple flat field with a 1.5 block high wall and they jump on their own without following a player.
[media]
Avoma
I am unable to reproduce this issue in 20w51a. The mob just stands still and does not attempt to join over the obstacle.
[Mod] LateLag
Is anyone still able to reproduce this issue in the current release?
[Mod] LateLag
Reopened as the duplicate report was frequently being updated for recent versions of the game.