Leads in unloaded chunks break upon re-entering chunk
Update from [Mod] GoldenHelmet: Leads break whenever the leash knot and the mob that is leashed to it are in separate chunks, and the chunk where the mob is located gets loaded first. This can happen immediately when opening the world or loading into one dimension from another, or when travelling toward a leashed mob for the first time after loading the world or the dimension.
Steps to reproduce
- Open Lead break on load.mcworld
. - Spawn a pig on the gold block and quickly leash it to the fence post on the other side of the wall. The wall ensures that the leash knot and mob remain in separate chunks for the test.
- Travel to the lapis block at X = 72.
- Save & quit, then reopen the world.
- Travel back to the pig.
Expected result
The pig is still leashed.
Observed result
The pig is not leashed. The lead has dropped as an item and the leash knot is still on the fence post.
This happened in older versions in MCPE as well. Leaving a chunk containing an animal on a lead tied to a fence post and returning results in the lead breaking and animal wanders free. Often, I can witness the animals and mobs "bouncing/ teleporting" from one spot to another when entering the chunk whether they're on a lead or not.
Linked Issues
is duplicated by13
BDS-18200leash releases animal mobs to become loose and leash still shows around fence postDuplicate
MCPE-160496Leads break when returning from Nether.DuplicateMCPE-164177Leads break randomly when attached to a postDuplicateMCPE-166822Leashed allays haunt you when you enter a world recently in 1.19.60DuplicateMCPE-167461Leads break upon loading up the game or exiting and reentering the chunk where they areDuplicateMCPE-169767Lead attached to mob breaks or disappears DuplicateMCPE-169992Leads atraching mobs to fence posts break and/or render invisible on load of map/chunkDuplicateMCPE-170499chunk is reloaded it causes the lead to breakDuplicateMCPE-172457Leaded animals DuplicateMCPE-173395Leads keep on detaching from animals DuplicateMCPE-175552Llamas are not connected or even detached from the fence by itselfDuplicateMCPE-176893Leads sticking to fences but not mobs.DuplicateMCPE-177456Leads breaking when chunk is unloaded is NOT Resolved Duplicate
MC-14826
![[Mod] GoldenHelmet](../../../data/avatars/users/18951.svg){kind=small}
Created Issue:
Leads in unloaded chunks break upon re-entering chunk Mobs appear to "teleport" from afar
This happened in older versions in MCPE as well. Leaving a chunk containing an animal on a lead tied to a fence post and returning results in the lead breaking and animal wanders free. Often, I can witness the animals and mobs "bouncing/ teleporting" from one spot to another when entering the chunk whether they're on a lead or not.
Environment
Bedrock version 1.19 & older versions on Galaxy s20, Android 12 (sorry, know next to nothing about tech)
![[Mod] Asteraoth](../../../data/avatars/users/92886.png){kind=small}
is duplicated by
![[Bot] Arisa](../../../data/avatars/users/43007.png){kind=small}
is duplicated by
![[MCQA] v-weszaj](../../../data/avatars/users/18941.svg){kind=small}
is duplicated by
![[Mod] OcelotOnesie](../../../data/avatars/users/43220.png){kind=small}
is duplicated by
is duplicated by
is duplicated by
is duplicated by
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In addtion, That leaves behind knots on fence.
Update from [Mod] GoldenHelmet : Leads break whenever the leash knot and the mob that is leashed to it are in separate chunks, and the chunk where the mob is located gets loaded first. This can happen immediately when opening the world or loading into one dimension from another, or when travelling toward a leashed mob for the first time after loading the world or the dimension.
Steps to reproduce
- Open Lead break on load.mcworld
- Spawn a pig on the gold block and quickly leash it to the fence post on the other side of the wall. The wall ensures that the leash knot and mob remain in separate chunks for the test.
- Travel to the lapis block at X = 72.
- Save & quit, then reopen the world.
- Travel back to the pig.
Expected result
The pig is still leashed.
Observed result
The pig is not leashed. The lead has dropped as an item and the leash knot is still on the fence post.
This happened in older versions in MCPE as well. Leaving a chunk containing an animal on a lead tied to a fence post and returning results in the lead breaking and animal wanders free. Often, I can witness the animals and mobs "bouncing/ teleporting" from one spot to another when entering the chunk whether they're on a lead or not.
Leads in unloaded chunks break upon re-entering chunkMobs appear to "teleport" from afar
is duplicated by
![[Mod] EVGENSYPERPRO](../../../data/avatars/users/92853.png){kind=small}
is duplicated by
is duplicated by
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relates to
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Duplicate of MCPE-157182
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I recently started having this issue. I had frogs and Allay wandering off, but it hadn't happened with any other mob for me. Still annoying the tie the mobs back up though. Allay are a pain to leash on PE.
I've had a problem with this too. I was bringing a young strider back to the overworld and after a about 10 seconds, it teleported back to the nether and broke the lead i was using. although i'm in the Switch version, i didn't see a post for the switch version.
This is still happening in bedrock 1.19.81
In 1.16 (pre-Caves & Cliffs Part 1), I used to tie up 3 yellow sheep to a singular fence post at the front of my small base. Whenever there was a blackout the lead(s) could break and they wandered off.
In current 1.19.81 when I temporarily tied my horse to that fence post, the lead broke when I loaded up the save (knot remained).
Possibly an issue with incomplete game save data.
Affects 1.20.1
Still happening. A lead occasionally breaks when re-entering the chunk, leaving the lead floating as an item.
Also, the attachment that a lead leaves on the fence is still visible, even though the lead itself has broken.
The problem also occurs with version 1.20.20.20
Affects 1.20.30.21 preview
Partially fixed, still affects:
•Allay
•Frog
•Camel
•Wolf
•llama
In the world tested Lead break on load v2.mcworld
. Evidence video link
If any mobs happen to me, tell me so I will add it
The problem is triggered when the entities move away from lead. The behavior of the frog that causes it to break the leash is its jump, each jump it takes, it moves further away from the leash, but since the leash has not been loaded, it does not make it return, once it has gone far enough and then loads. The chunk where the strap is located will break. The behavior of the allay is to chase the player or an item. If the allay tries to grab an item that is close to it but is tied and the chunk where the leash is located is unloaded, it will cause the allay to move away without anything blocking that movement. Causing that once the strap is loaded it breaks when that chunk is loaded. The behavior of the wolf is that it is angry and tries to kill the llama, which causes that if the strap is not loaded and if the wolf moves far enough away and called by the push this breaks when the belt is loaded.
It affects all entities that are pushed by other entities like the wolf pack pushes pigs while unloading their leash. The solution I would propose is for entities to have anti push while their straps are unloaded and remove their AIs so they don't move while their strap is unloaded.
@Timer RP Happens to sheeps as well. Likely is a problem with anything moving attached to a lead.
Mobs pushing other mobs and breaking their leads as a result is something that happens anywhere. It is not part of this report because it has no essential relationship to reloadIng.
The other examples of breaking still happening when loading are cases where mobs try to move when leashed. These could be considered edge cases of
MCPE-47168as much as this issue. The fix applied to this issue in 1.19.50 makes leads not break only because the knot is unloaded. It was not aimed at leads breaking because the mob moved and the lead could not function properly.Perhaps a complete fix would require that leash knots be loaded outside of simulation distance, something like the way projectiles were in 1.17.30-40. The leash not may not need to be ticked, so long as the leashed mob can detect that the knot is present because it is loaded in memory.