mojira.dev
MC-214808

World occasionally fails to load correctly

Sometimes, when you're just playing normally, some chunks fail to load, causing the entire chunk to be made of void_air. If you step in these "ghost chunks", you will glitch out because of a server-client disagreement about what block you're standing on. Mobs will also glitch out and spin rapidly without being able to move. This can be fixed temporarily by leaving the world and coming back, or pressing F3 + A to reload all chunks. This seems to happen more and more often as you move away from the last spot where the world was reloaded.

The potential reason for why this happens is because the server has trouble processing the new height limit changes, while the client is completely fine. The last time this happened was when singleplayer was changed to an internal server, so it is probably caused by a client-server disagreement of which chunks are trying to load.
Post-21w16a edit: this doesn't seem to be likely anymore, since it still happens eventhough the height changes were reverted.

Related issues

MC-214798 Teleporting to the Overworld from the Nether with commands produces major chunk loading glitches MC-214835 Chunk Glitches MC-214852 Chunks can go invisible when looked at a specific angle MC-214856 Rendering issues in the caves. MC-214916 Chunks not generating visual MC-214957 Excessive culling from certain angles when in large caves MC-215016 Hell district cannot be displayed. MC-215322 Snapshot 21w06a Chunks not loading MC-215358 Chunks Load Problem MC-215432 Chunk loading error latest snapshot 21w06a MC-215513 negative y level doesn't load properly MC-215853 Chunk Loading at high distances breaks when teleporting millions of blocks out MC-215872 Chunks not properly rendering/loading MC-215881 Strange chunk loading glitch MC-215911 Non-rendering chunks MC-215918 Chunks Stop Loading Under Water When Render Distance Is Significantly Adjusted MC-215988 Chunk not loading MC-216121 Chunk Loading Error MC-216322 The chunk wasn't loading in, and when I walking into the chunk my movements glichted MC-216489 一个错误的区域块 MC-216819 Glitched chunks in 21w08a when tp to a village MC-216847 chunk bug MC-217032 Singleplayer Chunk Loading issue MC-217156 chunk limit is incorrectly MC-217257 Chunks Flashing in and out after teleport. MC-217374 while in creative mode chunks were sometimes failing to load MC-217457 The chunks are bugged. Even mobs on them are bugged, too. MC-217649 Weird Chunk's Loading MC-218683 Chunks not loading correctly MC-218898 New chunk errors found in end! MC-218981 Unstable chunk loading. MC-218995 chunk not loading properly MC-219072 World generation chunk bug MC-219093 Chunks load incorrectly MC-219174 Is this a block load error? How to solve it? MC-219239 chunk loading error MC-219415 Chunk Error in Minecraft Java Edition (Mac Version) MC-219729 Temporary corruption of chunk MC-220028 Chunks are not loading MC-220198 chunks loading error MC-220199 chunks loading error MC-220248 Chunk not loading MC-220412 Chunk and lighting errors MC-220480 my chunks will not load in MC-220644 Slow loading of chunks in 21w11a MC-220648 Chunk not loading respawn issue MC-221559 Random chunks will not load under any circumstance MC-221704 Mob not rendering, but can do damage MC-222073 So when I entered the world, it was split and I confirmed it still couldn't MC-222420 Bug MC-222550 Chunks disappearing MC-222574 Missing chunk that causes large culling error MC-222651 Loading bug in the Nether MC-222758 Chunk Crash MC-222865 chunk deleted MC-222969 World Chunk doesn't load. MC-223182 I was looking through the new snapshot in spectator and came across a missing chunk, and whenever i were to move to look at it from a different direction, there would be a line of missing chunks MC-223345 Spawned inside an empty chunk in the Nether MC-223464 entity glitch MC-223793 non loading chunks MC-223891 Chunks do not load after a TP command MC-223954 Snapshot 21w16a bugs MC-223987 Chunk can't be generated MC-224097 Oceans can have invisible water chunks when you look near their direction

Attachments

Comments

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anthony cicinelli

There isn't enough information here. Please provide more information such as seed & coords and/or reproduction steps.

violine1101

Also we need info about render distance, processor, graphics card, ...

Mask3D_WOLF

Relates to MC-214898

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Chunk/section loading issues in water: https://www.youtube.com/watch?v=LhCd__Lr8Rs
Render distance 16.
Might provide more info if I can reproduce it generally.

migrated

@unknown is this a "stronger" version of what was happening since 1.15? If so, could this be attached to this report as related? To be more specific, I'm talking about MC-70850

violine1101

Not really, no. It's sorta similar in that sometimes chunks don't render, but with MC-70850 it only happens when the chunk is partially obscured. This is not the case here, from what I can tell the reason for chunks not rendering is the chunk rendering system being overwhelmed.

Also MC-70850 is happening for a lot longer than just 1.15

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So far, I couldn't find reproduction steps, creating another world with the same seed will not have the same missing chunks at the same location, but when I encountered another missing chunks area, I did some basic testing; the video is rather lengthy (~15 minutes), but maybe showing the issue extended may give some of you some pointers where to look, what could be the cause: https://www.youtube.com/watch?v=GiF7IdENN30

Some general observations (numbers are video timestamps which show what's mentioned):

  • With F3 turned on, you'll see as Biome "Waiting for chunk..." when you're in the affected missing chunks region (whole video)

  • Reloading all chunks (F3+a) does not do anything

  • The missing chunks go all the way down to Bedrock level; from underneath, you can see the actual amount of missing chunks (2:45)

  • The - at least from some angles - not rendered chunks make out a straight line (4:15), although the not rendered chunks are not actually affected and pop back into existence, dependent on how you move your camera; the actually affected missing chunks will make a hole all the way down, whereas the only seemingly missing chunks won't, when you look down (7:45)

  • If you move the player camera, neighbouring chunks outside of the "straight chunks line" may not appear as well and pop back and forth in/out of existence (4:30, 9:00)

  • Mobs you push, spawn, or walk into a missing chunk will freeze and shake (10:00, 11:10, 11:20, 11:40, )

  • The same goes for items; you can see this best with items if you activate hitboxes with F3+b (12:45)

  • You cannot place any blocks inside the missing chunk, also not falling blocks (0:45, 10:45);
    it is possible to setblock a block, however, it will not show up visually (1:05, 10:55)

  • If you place water at the border of the affected chunk, it will not flow inside of the missing chunk (13:15)

  • If you open the world to LAN and get a second account in, this second account will also see the very same missing chunks and experience everything the same

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  • The player does not fall through the missing chunks, they will stand like on invisible blocks (12:20); walking inside a missing chunk is very slow, as if on soulsand/inside cobweb

  • Despawning of items inside missing chunks is not affected

  • Changing the render distance (16 > 32 > 10) (4:00, 9:05) does not affect the missing chunks rendering, still more than the actually affected missing chunks will show up as visually missing from some angles

  • Relogging fixed the missing chunks for me; the water I placed before at the border of the missing chunk flowed into the previously affected chunk, the stone I setblocked before could now be visually seen

  • While relogging fixes this issue, this is not the case if you have a 2nd account around the area, and then relog; as long as the host/main account is in the world, this issue will persist, at least in Open to LAN worlds, for also other players (unsure about actual servers atm)

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I also found this bug! I recorded it immediately and the footage shows me trying to interact with the world + animals.

 

https://www.youtube.com/watch?v=a42rUVph5BI

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Seems I've found the same bug too, snapshot on 21w10a on Windows 10 system. I needed milk to remove a Bad Omen status, and walked/ran in survival mode from my base a few hundred blocks away as seen in the location -338 79 -223 and found the chunk. Walking across the invisible blocks is extremely slow. I took a few screenshots and one image of the F3 text shows "Waiting for chunk..." message. Saving/exiting the game and reloading it resolved rendering the chunk properly.

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Same error on 
OS : Windows 10 Pro 64-bit
Java version : 11.0.10 64-bit
CPU : AMD Ryzen 5 5600x CPU @ 4.6 GHz
GPU : NVIDIA GeForce RTX 3070
Drivers : GeForce 461.72
RAM: 16GB

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I has this happen to me once while there was a skeleton in the chunk, it kept shooting at me even though I couldn't see it or shoot back

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This is another example of it happening

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This happened to me back on 11a but havent experienced it so far on 13a

Avoma

Can confirm in 21w14a.

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21w15a both with caves and cliffs datapack, and without the datapack.

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I think this is the same bug that I experienced, uploaded video of it and screenshot of my video settings in 21w15a ~PIAF7B.mp4 

Brevort

Can we strikethrough the last few lines of the description, being that this still is happening despite the world height being reverted? It is a good thought and is important to note that this issue arose around the time of the new world height, and may be correlated; however, isn't a direct cause of the different world height.

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How 1.16.5 is affected?

Jack McKalling

@unknown Edited.
I can't reproduce this in 1.16.5, I really tried very hard. Flew everywhere around the world for hours and hours. The issue occurs (at least) much more frequently in the marked snapshots. But this may still be because I'm just not producing enough lag or my computer is performing too well.

Brevort

I am able to reproduce in 21w18a. Anyone else able to as well? I made a new report because it might not be the same issue: MC-225063.

PhiPro

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(Unassigned)

Confirmed

Important

Rendering

21w06a, 21w07a, 21w08a, 21w08b, 21w10a, ..., 21w13a, 21w14a, 21w15a, 21w16a, 21w17a

21w18a

Retrieved