Visiting spawn chunks and the surrounding chunks around it causes massive lag spikes that freeze time and make playing impossible. Blocks will not update, day/night will not progress, player movement rubber bands. Problems persist even with the lowest graphics settings and optimization mods do not fix the problem either. This needs to be addressed ASAP as the game is not playable in this state. Problem began in 1.20 and persists in 1.20.1. It may only affect old worlds that have been updated. It is possible that it is caused by villages, I haven't done enough testing to see if that is the case.
Attachments
Comments 6
I'm also having this issue, without the visual lag. Probably nothing to do with villages since there isn't one at spawn. I attached a link to a video showing what happens. Forgot to press F3 + L and I will next time this happens. Very annoying bug that fixes itself after a few minutes. Nothing lags the spawn chunks. My base is partially in them but nothing that creates lag is. (Base is underground) Before I started recording, I had died and sent to spawn, but the only chunks that were loading were the ones in the green barrier, which shows the central spawn chunks where entity processing can take place. After about 30 seconds they loaded and 10 seconds after that I started recording. Not sure how many people experience this, but it is VERY annoying. Also, sometimes when I go through my nether portal (In lazy spawn chunks (no entity processing)) the game freezes for a few minutes. It starts on the loading screen, freezing on "loading terrain". After a couple minutes wait, the game loads, but I can see through a most blocks. A few minutes after that, the game fully loads and runs normally.
(Video was too big to fit in the attachments)
IMPORTANT EDIT: It seems that F3 + L doesn't work while the game is in this state
EDIT 2: I made a copy of my world to see what happened in creative. I can confirm that commands don't work when the game does this either. It also doesn't take up any more computing power than normal while broken.
edit 3: added a screenshot. The world is basically unplayable now as the bug won't fix itself anymore. I've sat for an hour just hoping that the game would somehow fix itself but it won't.
Debug profiling of the issue. All datapacks were removed to make sure this was a purely vanilla issue
Apparently the debug profiling from a week ago worked and I just looked in the wrong spot. Also did one today while it was happening and attached them both.
development: may have something to do with particles. on the profile I did earlier today before the rest of the world loaded (I was arriving to spawn through nether portal), a huge amount of bubble elevator particles were visible. After I decided to try and turn off particles and see if that helped. When I came back through nether portal, everything loaded fine. I need to test this more because I was only gone from spawn chunks for about 30 minutes.
We do not have enough information to find the cause of this issue.
While the lag occurs, please press
F3+Lonce, then wait a short moment until profiling has finished.Afterwards, please attach the generated
.zipfile containing the profiling results here. The file path is shown in chat; the file can be found in[minecraft/debug/profiling/<DATE>.zip|https://minecrafthopper.net/help/finding-minecraft-data-folder/].If you are playing on a server please additionally run the command
/perf startto create a profiling report for the server. In case you do not have the permission to run this command, make sure that you're a server operator.Once profiling has finished, please attach the generated
.zipfile fromdebug/profiling/<DATE>.zipof the server folder.This issue is being temporarily resolved as Awaiting Response. Once the requested information has been delivered, the report will be reopened automatically.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki