Notice
If you experience this on 1.14.4, please make a debug dump of your world by running the command:
/debug reportThen attach to this ticket the zip file you'll find in the debug folder of your Minecraft directory. If you don't have op permission, either ask your server admin to perform the dump, or if you are on singleplayer, open your world to LAN with cheats on.
Workaround
In previous 1.14.x release mobs could aggregate in non-ticking chunks (due to MC-151772). For example, here's how distribution of entities looks like in attached report:
Unfortunately, those mobs need to be killed before normal spawning can be restored.
Please note that using '/kill' command will not remove those entities until player gets close enough to chunk to tick.
I guess on singleplayer setting render range to max and then slowly walking away is option for despawning hostiles. Though it won't do anything with bats.
– @unknown in this comment and this comment
When entering a world that was generated in version 1.14.2 of minecraft with the new version (1.14.3), the amount of mobs that are spawned in the world is reduced a lot, being more difficult to find mobs.
Linked issues
is duplicated by 34
MC-153828
Most agressive mobs on overworld are not spawning
Resolved
MC-154456
Super Rare or no Enderman at Night in the overworld
Resolved
MC-155214
Previous worlds in peaceful mode no longer naturally spawn mobs after latest updates
Resolved
MC-155316
Problems with hostile Mobs
Resolved
MC-155355
Hostile mobs will not spawn at all.
Resolved
relates to 2
Attachments
Comments 29
Same problem after converting a 1.14.2 world to 1.14.3, monsters don't seem to spawn at all, neither do friendly creatures. They only spawn underground it seems. Monsters spawn fine when using spawn eggs.
Update:
Ok so i have done a little more testing using the commands and it appears that hostile mobs are not despawning at 128+ blocks again in 1.14.3 as they should again, similar to what was in MC-147890
Standing 4000 blocks away from world spawn I can execute a data get command and pull the POS of these mobs which shows them being in spawn chunks and not despawning after I left the area.
Which I assume is why there are little to no hostile mobs spawning around the location I currently am.
I am having this problem on my private Minecraft server, where I play with 3 others.
It's especially noticeable at my slime farm which I built and where not even one slime had spawned after roughly two hours of AFKing (I actually got one single slime spawning in this chunk before I built the slime farm by /killing all zombies, skeletons, pillagers (291!) and creepers, so I know, that it's an actual slime chunk).
But also on the surface I get quite low spawn rates while on difficulty hard.
[media]
There is a separate issue with slime spawning: MC-153326. Perhaps that is relevant for you.
@violine1101 I think, that's not the whole issue, maybe it's both, because as I said, the spawn rate of basically all hostile mobs is pretty low.
for me this is not only in the overworld but in the nether too, not sure about the end, i don't think the problem is there, but definitely in overworld and nether
Having the same Issue after upgrading from 1.14.2 to 1.14.3
The Guardian farm i was working on in 1.14.2 was dangerous to be in the water. After 2 days of playing on 1.14.3 i have seen maybe 4 Guardians total, no hostile spawns at nights, even on unlit nearby islands. Only mob i have seen spawn in are Phantoms after going days without sleeping. Will look in to this more when i get a chance tomorrow and see if i can narrow it down any.