mojira.dev
MCPE-21135

Game became almost uncontrollable due to huge lag in particulal area

Hello,

My survival world suddenly became unplayable due to lag in certain area around my initial spawn point where all my stuff is constructed. It lags so much that most time I can't even turn my player or place any block - any touch is interpleted as long touch. But I can move using arrows and when I move far enough from the area (I think about 60-80 blocks) lag dissapears and all works ok, just I return - again lag.

It happened when I was trying to speed up my XP farm (using zombie spawner underground at about level 10) and killed a big slime (there is also slime chunk there). I thought it's because too much zombies spawned, but after hard tries I turned off the spawner and killed all zombies, but lag had not disappeared. Climbing up from the underground didn't help too.

I tried to load/unload the world and the app several times. Two my other creative worlds works fine.

Providing all my Minecraft PE files from iTunes so you can reproduce the bug.

https://drive.google.com/file/d/0B7AO0v4hK3VgbU5zNGpkS0NpZmM/view?usp=sharing

Please help! Don't want to loose a lot of work 🙂

Thanks in advance.

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I have found this to be true in the redstone mansion which is why I can't play it.

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Confirmed on 1.1.0.3 Android 6.0.1
My favourite world which is two years old and sits around 450MB is completely unplayable.

Related to MCPE-19964 - Closed as WAI (SERIOUSLY??? @Mojang?????? Massive Lag = Works As Intended?)
Related to MCPE-21095
Related to MCPE-16977

Generally there has been a massive increase in lag throughout each of 1.1.0.0, 1.1.0.1 and now in 1.1.0.3 the game has literally ground to a halt and this problem needs fixed.

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So, I was able to fix my world. It comes out, that I actually didn't kill those mobs locked in my XP farm chamber. So when I let them out (and they obviously killed my player due to lag) after respawning the game became playable again and I was able to kill them separately. I think there was about 30-50 zombies.

But it should be still considered as a bug. As far as I know mob spawner should stop producing mobs after some limit of alive mobs reached, but when many of zombies were collected in 1x2 size chamber some of them started moving actively and I think that caused the lag. And then lag caused that the spawner didn't stop to produce zombies (I saw that they continue to spawn) even when there was too much of them and that's why it comes to even more lag.

I hope that my world files will help @Mojang developers to optimize mobs movement or behaviour to prevent such problems for other players.

[Mojang] Mega_Spud (Jay)

Cleaning up old tickets: This ticket has not been updated recently (1 year+) so is being closed as Cannot Reproduce. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines.

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migrated

(Unassigned)

Unconfirmed

Phone - iOS - iPhone 6

iOS 10.2.1

1.0.5.54, 1.0.6.52

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