mojira.dev
MCPE-21856

Mob spawn rate low or broken spawn rules

Update on this issue by [~Mega_Spud]:

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Mob Spawning - Feedback Site

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Something seems to be still wrong with the mob spawn rates.
It's fine for mob spawners, but for simple mob farms like a 20x20 platform 24 blocks above the player it's still off. I play in hard difficulty and there are barely mobs spawning inside my mob farm/trap. Ii tried multiple positions around it, but nothing really changed except an occasional mob drop every minute or so. The overall spawn rate seems to be quite different from the Java edition.

Mob spawners, like my skeleton farm around a spawner, works great though.

I attached (uploaded) the world, with the player right below the mob farm.
Sadly my world is 12mb big, so I uploaded it somewhere else: http://www.ta-sa.org/files/20170508_mob_farm_spawn_problem.mcworld

Maybe this is a duplicate of MCPE-12422, but that one is just open for iOS and not Windows 10.

Linked issues

BDS-965 Slime chunks don't work in Bedrock Edition Resolved BDS-1163 NO Hostile mobs spawning Resolved BDS-1393 Mobs not spawning Resolved BDS-1546 Mobs not spawning Resolved BDS-3508 Pillagers not spawning anymore Resolved

Attachments

Comments 322

have you tried lighting up all the caves around the mob farm, if not then that maybe your problem.

Weird Constuctor

I switched to peaceful difficulty to despawn the monsters around and switched back to hard difficulty. But there are still only 1 or 2 monsters per minute spawning.
I then waited in the correct distance (~23 blocks horizontally, while being at the same height) away from the farm. That would mean I am too far in the air for monsters to spawn in the caves.

(Win 10 - 1.1.1) I have issues with mob farms as well, the spawn rate seems to be too low. I've made an experiment in creative mode, hard difficulty. After building the mob farm in the screenshot (8 spawning platforms each 8x8, each separately flushed with 8 dispensers with water buckets periodically, once every ~15 seconds). Iron golem at the bottom (the fall damage is fatal, golem is for spiders that cling to walls). And staying at the location in the screenshot for about 10 minutes, the drops I get are in the other screenshot (only top row of the chest, the row below is from a different experiment). There is no other place in the entire world (flat, daylight cycle is disabled, no other unlit areas, all entities killed before the experiment) that the mobs can spawn.

Similar sized farms in java edition seem to be producing a lot more mobs (based on you tube videos).

Win 10 - 1.1.4 has the same issue. Also, hostile mob cap seems to be tied to the friendly mob cap. Breeding mobs totally killed hostile mob spawning.

Still broken in 1.1.5

The expected spawn rate i base my judgement on is Mumbo Jumbo's mob farm found here

312 more comments

@@unknown several changes were made in 1.16 that, as I see it, have fixed this bug.

  1. There is now instant despawning at a set radius (varies with sim distance)

  2. The light level requirement for despawning has been removed.

  3. Certain events that used to grant persistence no longer do, most notably monsters targeting other mobs/players.

The only remaining issue that has been joined with this ticket is that the global mob cap of 200 blocks all natural spawning, and 200 is too low for the way some users play the game and/or multiplayer worlds. If 4 people each have 50 animals at their bases, for example, no one else in the world can get monster spawns. Or if one person has a an automatic chicken hatcher that they just leave running.

That is excellent information, thanks.

@@unknown I checked with an NBT viewer and chickens hatched from eggs shot by dispensers do have persistence. I also tested and they did not despawn like naturally-spawned other mobs. If you are sure that they are despawning in your world and it wasn't, say, another player that killed them, then please make a new report just for that issue. A video or world save that shows the issue would help immensely in confirming a report, if you decide to make one.

@GoldenHelmet thank you. I did new tests and apparently everything is normal. It had happened in the realm, if it happens again, I will try it.

I'm so glad this was fixed! Good Job mojang studios!

Weird Constuctor

(Unassigned)

101699 / 102119 / 247067

Confirmed

Multiple

Windows 10

mob-spawning

1.16.0.59 Beta, 1.0.8.1, 1.1.4.51, 1.2.0.31, 1.2.9.1, ..., 1.13.0.4 Beta, 1.13.0.2 Beta, 1.12.1, 1.12.0, 1.14.60 Hotfix

1.16.0.51 Beta, 1.16.0

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