No AI Mobs from Natural Mob Spawners
After starting a world in creative, I had happened to spawn next to a dungeon. After entering, I noticed a massive amount of Skeletons floating about, and they're even spawning in sun light. I'm unable to hurt them more than once.
Environment
Mac OS X
Linked Issues
is duplicated by40
MC-89925skeleton spawner under sand spawns mobs that don't die or moveDuplicateMC-89966Zombie spawner spawns chicken at higher light levelDuplicateMC-90069Invisible baby zombies riding chickens from spawnerDuplicateMC-90114Floating Mobs Coming From SpawnerDuplicateMC-9013615w41b Dungeon Spawner DesertDuplicateMC-90184Skeleton MultiplicationDuplicateMC-90193Skeletons no AIDuplicateMC-90195Skeleton Spawners create huge lags. It keeps spawning Non moving Skeletons and there will be like 50+ in a spawner room, which made my fps go down from 200 to 11.DuplicateMC-90218Strange spawner behaviourDuplicateMC-90230random skeletons stop moving/attacking, and don't burn in daylightDuplicateMC-90239Mobs spawning from incorrect monster spawner DuplicateMC-90262A mob from the night stays through they day, does not move, and can only be attacked once.DuplicateMC-90300Fake Spawning in spawnerDuplicateMC-90324Wierd Glitch with spider spawnersDuplicateMC-90328The Skeleton Mob at one point in the morning froze, didn't attack and stood there.DuplicateMC-90335Spider spawner spawns a bunch of AI-less skeletonsDuplicateMC-90344Jockey mobs spawning in regular mob spawnersDuplicateMC-90386Skeleton Spawned with no AIDuplicateMC-90413Non moving skeletons.DuplicateMC-90433Skeletons duplicatingDuplicateMC-90440Zombie spawners spawn chickens at normal light level, on wooden planksDuplicateMC-90445Non-responsive skeletons and broken spawnersDuplicateMC-90453Glitched Skeletons Spawn From Spider Dungeon SpawnerDuplicateMC-90463Hostile mobs (skeleton) stationary in airDuplicateMC-90486Spawner BugDuplicateMC-90505Skeleton "Statues"DuplicateMC-90509Mob spawners not workingDuplicateMC-90514Skeleton spawning at Spider spawner rapdilyDuplicateMC-90517skeleton spawner turns empty( not found empty, turned empty)DuplicateMC-90532Spider Spawner creates Skeletons when deactivated with torchesDuplicateMC-90533Mob Spawner, immobile skeletons in peaceful.DuplicateMC-90540skeleton frozen in placeDuplicateMC-90542Dungeons not spawning the correct mobDuplicateMC-90559Spider Spawner creates hundreds of phantom skeletons.DuplicateMC-90561Zombie Spawner spawns chickens and baby zombies even when not supposed toDuplicateMC-90743Indestructable SkeletonDuplicateMC-90886Skeletons are sometimes unresponsive.DuplicateMC-90957Skeleton (and more hostile mobs)is still at peacefulDuplicateMC-90992Skeleton isn't burning in sunlight, floating and can only hit once.DuplicateMC-91013Skeletons not burning in daylightDuplicate
Created Issue:
No AI Mobs from Natural Mob Spawners
After starting a world in creative, I had happened to spawn next to a dungeon. After entering, I noticed a massive amount of Skeletons floating about, and they're even spawning in sun light. I'm unable to hurt them more than once.
Environment
Mac OS X
Attachments1
No AI Mobs from Natural Mob SpawnersFloating skeletons without AI being spawned when spider spawner attempts to spawn skeleton jockey
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Floating skeletons without AI being spawned when spider spawner attempts to spawn skeleton jockeyNo AI Mobs from Natural Mob Spawners
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![[Mod] Torabi](../../../data/assets/gravatar/torabi.png){kind=small}
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![[Mojang] Nathan Adams](../../../data/assets/gravatar/dinnerbone.png){kind=small}
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![[Mod] Les3awe](../../../data/avatars/users/79847.png){kind=small}
Confirmed for 15w41b
Issue be more serious.
Link: MC-89923
Likely related to MC-89923.
Dupe of MC-89923
This issue duplicates MC-89923
Duplicate of MC-89923 – If you searched the tracker before creating this report, and were unable to find the indicated ticket, please comment with the keywords you searched for so that the original report can be improved.
Dupe of MC-89923
Dupe of MC-89923
![[Helper] Michał](../../../data/avatars/users/43368.png){kind=small}
It might be related to MC-89923
Dupe of MC-89923
![[Mod] Neko](../../../data/avatars/users/92901.png){kind=small}
Dupe of MC-89923
Dupe of MC-89923
Dupe of MC-89923
Dupe of MC-89923
Dupe of MC-89923
Dupe of MC-89923
Dupe of MC-89923
Dupe of MC-89923
Please use the search function! This bug has already been duplicated more than 20 times!
Dupe of MC-89923...
Dupe of MC-89923
This issue duplicates MC-89923
Jeff Staub: MC-89923.
(wrong duplicate, correct one is MC-89923)
We received dozens of reports for the AI-less skeletons spawning on 15w41a/b, but none of the reports from 15w42a were based on fresh maps: MC-89923
This issue may be duplicates MC-89923
Duplicate of MC-89923 unless you can reproduce this in a world created in 15w42a.
This issue duplicates MC-89923
This issue duplicates MC-89923
Duplicate of MC-89923 then.
To reproduce, follow the steps taken in this video: https://www.youtube.com/watch?v=UgiTzg2jr_A
When confirming this bug for a new snapshot please only do so if you have experienced the problem in a world created in that snapshot. Thank you.
- New survival game started at 15w43b.
- 90% of the time spent in a village in a plains biome.
- 1 or more skeletons with no AI would spawn each minecraft day around the village (or just player?).
- These skeletons can be hit once and no more but still remain.
- These skeletons if enough keep spawning in each minecraft day will prevent other mobs from spawning.
- Saving and reloading will remove these skeletons however they continue to keep respawning each minecraft day.
- Not related to Skeleton Traps.
All relevant reports (MC-91461, MC-89923 and this one) suggest this issue is related to the Passengers tag:
The same issue occurs on occasion (thought very rarely) with baby zombies.
Others suggest the issue is related to despawning.
Removed references to Skeleton Trap since no AI skeletons occur without them.
If it was created in 15w41a or earlier the skeleton might have been caused by MC-89923, which was fixed in 15w42a. Since your world was created in 15w42a, MC-89923 can not be the cause of your issue (or MC-89923 isn't fixed completely). Either way, post-w41 occurrences of NoAI skeletons are tracked in MC-91290.
Confirmed
This issue relates to
MC-88646No AI mobs from ALL natural spawns, it seems...?
I came here because of a Skeleton that doesn't react, and I'm pretty sure that spawned outdoors at night. I hit it once, then could not affect it again. I dug all the dirt out from underneath it and it didn't fall. Seems like the same issue.
I have found, fought, killed and been hurt by other monsters near here. It's not all the monsters in the world, but it has been a couple.
I've come across this bug in my hardcore world. I found a spider dungeon, looted the chests, and when I turned around there were several floating skeletons. Once I managed to push my way through them, I looked back and saw that more were constantly spawning.
It might be related to https://bugs.mojang.com/browse/MC-90101
That seems unlikely.
What appears to be going on is that spawning of entities with passengers is screwed up. For example, when the spider spawner is lit it will be trying every tick to spawn spiders, but none of these spiders will be able to spawn because of the light levels. 1% of these spiders, however, will be skeleton jockeys, and apparently the skeletons wind up being half-placed in the world (there, but not in a way that they'll be ticked or saved) even though the spiders themselves aren't.
It's likely the same can happen when a natural spider jockey tries to spawn. Being able to hit the skeleton once then not again is likely because the one hit sets the temporary invulnerability which never goes away because the skeleton isn't ticked.
Zombie spawners seem similar but different: chicken jockeys will spawn the chickens, while the baby zombies will not be correctly added to the world but will be saved. Logging out and back in results in these babies being properly added to the world. The difference is probably because here the zombies (rider) are spawned first then the chicken (mount) is added, while for the skeletons it's the spider (mount) that's spawned first then the skeleton (rider) is added.
@Anomie X, now i see. Thx for explanation.=]
They also spawn in peaceful mode, and when you run /say @e[r=5], it says Username and skeleton.
i dont see why my ticket got a duplicate from here...its not even the same bug... might be related but its not the same thing at all
ok now i just checked and my zombie sapwner is empty too...
I am seeing this behavior in snapshot 15w41b. Skeletons appearing around a spider spawner.
Jeff, this bug was first found in this (15w41b) snapshot, already confirmed and will be fixed in future version.
I am not sure, but I think it still exists in 15w42a. Or at least something similar is happening in 15w42a.
WesselH: Screenshots (with the F3 screen) and steps to reproduce, please.
Hmmm...
Looks like its fixed in 15w43a/b
I also can't find a "dead" skeleton anymore in 15w42a
This error is occuring on 42a .. however im testing to see how it goes on 43b
In 43b there was a no AI skeleton that spawned, albeit naturally
I encountered one skeleton with no AI, but it spawned naturally as well. I managed to hit him once, then he froze.
Attached image 2015-10-25_03.09.31.png is on 43c. I'm thinking this isn't really fixed yet. Hit this skeleton once, then he froze.
Bob Saggot and John Walter, were your worlds opened in any version before 15w42a? Because if they were, the NoAI skeletons could spawn and stay there until you found them in this version, or it's actually a different bug.
SunCat, yes, I've been updating this world for each snapshot, so the world was open in an earlier version. That being said, I was quite far away from this area, so I believe it was a fresh natural spawn. I say "believe" because I'm not certain. After quitting Minecraft, the skeleton is no longer there when I reopen the game. This could definitely be a separate issue, or already fixed. I'll keep watching to see if it happens again.
If you find new information, please comment here:
MC-91290