mojira.dev
MC-166508

Glitchy chunk rendering since 1.15 pre-release 2

Flying around, i noticed some wierd rendering bugs where entire sections of the world would just go invisible in front of my eyes and/or would refuse to load for several seconds.

Restarting the game or generating a new world does not fix this issue.

Video:

https://www.youtube.com/watch?v=c8I2b56peGk&feature=youtu.be

Video demonstrating the issue in the 'fixed' version 1.15-pre3: https://youtu.be/3ehiTElqNqU

Related issues

MC-17444 Health scoreboard doesn't display hearts from health boost MC-166735 Glitchy chunk rendering MC-166805 Chunk render glitch not fixed MC-167122 broken chunk rendering MC-167489 Bad Performance Render Chunk (MAP Update) MC-167928 Render Bug MC-190786 Chunk loading in nether is slow MC-192616 Some mild lighting errors on certain chunks MC-194011 Nether rendering is broken MC-197145 Only a small amount of chuncks load in around where you last logged. MC-200891 Chunks are not loading only in my World MC-201137 Chunks not loading, game takes ages to save MC-201694 When flying with the elytra the chunks load very slow. MC-220179 Client doesn't load every chunk sent to it by server MC-223348 Chunks not rending properly at certain angles MC-224994 Chunks don't render correctly in worlds with modified world height MC-226550 Chunks refuse to load MC-226935 Rendering chunks causes game to freeze MCL-17444 glitched chunk in snap of 1.17

Attachments

Comments

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wobst.michael

Can confirm. The interesting part is that chunks that are already loaded/rendered suddenly unload (as can be seen around 00:09) for no apparent reason.

This behavior again is new in 1.15-pre2.

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Creating a new amplified world, and waiting a bit before flying towards the edges of the world will reproduce this. 

However, when i first reproed I did so on a client that had been running overnight. My impression is that this issue was much more noticable then. 

Barteks2x

I can still reproduce it in 1.15 pre3, shown in this video https://www.youtube.com/watch?v=itf6gPlFTmc

While it eventually fixes itself after a while of waiting, I have to be in the same place for a while for it to do so.

bdm68

I can confirm it's not fixed in 1.15 pre-3. Reproduced using a new amplified world in creative mode and spectator mode.

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Same for me: not fixed in 1.13 pre-3

gaspoweredpick

Still happens in 1.15 Pre-Release 6. Render distance changes don't affect this bug.

wobst.michael

Confirmed for 1.15. See

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Yes, bad perfomance Chunks, reload map ver 1.14.4 a 1.15

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It happens even without amplified world, and does so constantly.
https://youtu.be/xq-hc-mPZTU

It usualy breaks more where rendering was paused.
https://youtu.be/f22wPwsxGm4

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Uploaded 2 new schreenshots with 1.15.2.

It happens far more often if flying fast using spectator mode.

Arisa Bot

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Can confirm for the 5 minutes I was on the snapshot lol

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Can report that this is happening in the new 20w22a snapshot too.

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Happens frequently in 1.15.2 when flying around with elytra and rockets. You can make it happen quicker by maxing out the view distance. 

galaxy_2alex

I can reproduce this myself on 1.16.1, please let me know if any help or more info is needed. I have attached my DxDiag, also a screenshot of my game while the issue is occurring - it's not just that it is sometimes slow, but all of the sudden already loaded chunks close to the player disappear again for a moment. The easiest way to reproduce for me is to fly around in an elytra.

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Similar to Alex, I am experiencing the same issue. (I can reproduce the same glitch in a vanilla server). I had my friend tested on his PC but unable to produce the glitch so I am suspecting it might be related to hardware. Attached are both DxDiag of me and my friend. 

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Me and my friends are getting this issue like crazy on a multiplayer server. It happens most when we are flying fast with an elytra and fireworks in the overworld. (1.16.1)

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Yeah, me too. Thought it was just lag, but I guess it’s a glitch

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Can i have ownership as the user has not been active since april?

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Yeah i get that as well but it's only with my world, not with other worlds.

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I had this problem a few weeks ago and it mostly went away by itself before coming back with a vengeance this weekend. I've also noticed that when this glitch happens, it can take ages ( >3 minutes) for the game to save in single player.

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I had a bit of a further play about with this bug. I started up a brand new world in creative mode and blasted around it with a pair of elytra, and with the exception of a couple of times the rockets lagged a bit (and it was a bit slow but not dramatically slow loading going through nether portals), I didn't have any problems with chunk loading. Total time to save once I exited was 25 seconds. I then went into a very old world with heavily developed chunks, and the problems cropped up within seconds. I teleported to an unexplored part of the world to generate brand new chunks, and the problems still cropped up. Total time to save once I exited was over 2 minutes. Hope this is helpful in some way.

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Can confirm in between versions 1.8-1.16 in a survival singleplayer and multiplayer world.

FaRo1

Then it's probably not this exact bug. Early 1.14 versions for example had a different kind of chunk rendering issue and 1.13 had different issues again, but 1.12 for example almost definitely was not affected by this specific bug here.

Mask3D_WOLF

Probably relates to MC-214898

Brevort

Can this be reproduced in 21w18a?

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Yes it can be reproduced in 21w18a if u are on a world with extended height, that is, a world with the caves and cliffs preview datapack. I have tested.

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I think I'm suffering from this in vanilla 1.17.1. Is that possible?

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This bug is still present in 1.17.1 and 1.18.

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Also present in all 1.18 experimental snapshots and 21w37a

ampolive

Can confirm in 21w39a. Very rarely, chunks will just outright refuse to load for up to 20 seconds.

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@slicedlime Still not fixed in 21w41a

Arisa Bot

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Have a look at the Resolution and the comments to see why this ticket has been resolved. If you think this ticket has been resolved erroneously you can contact the Mojira staff on Discord or Reddit.

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ampolive

This still occurs sometimes in 21w41a. Can confirm not fixed.

syarumi

Can confirm as well that still happens on 21w41a.

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Chandler

We've decided it's best to create a new ticket for this issue instead of reopening it. If you can reproduce this in 21w41a then feel free to create a new ticket.

ampolive

I created a new ticket: MC-239031. If someone already created a new issue first, please resolve it as a duplicate.

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slicedlime

Confirmed

Very Important

Chunk loading

mojang_internal_2

1.15 Pre-Release 2, 1.15 Pre-release 3, 1.15 Pre-release 4, 1.15 Pre-release 5, 1.15 Pre-release 6, ..., 21w10a, 21w18a, 1.17.1, 21w37a, 21w39a

1.15 Pre-release 3, 21w41a

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