MC-218739Glow berries and glow lichen generation does not cause light updates across chunk borders
note NOT a duplicate of MC-218692
when glow berries naturally generate their light does not cross chunk borders the worldtype is single biome , biome is lush caves and there are no abnormal generation settings, coordinates can be clearly seen in screenshot provided and seed is 6897378577990291163
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![[Mod] Avoma](../../../data/avatars/users/86198.png){kind=small}
NormalCreated Issue:
when glow berries generate it doesnt cause light updates across chunk borders
note NOT a duplicate of
MC-218692when glow berries naturally generate their light does not cross chunk borders
Attachments2
![[Mod] violine1101](../../../data/avatars/users/92858.png){kind=small}
note NOT a duplicate of
MC-218692when glow berries naturally generate their light does not cross chunk borders the worldtype is single biome
![[Bot] Arisa](../../../data/avatars/users/43007.png){kind=small}
note NOT a duplicate of
MC-218692when glow berries naturally generate their light does not cross chunk borders the worldtype is single biome , biome is lush caves and there are no abnormal generation settings
note NOT a duplicate of
MC-218692when glow berries naturally generate their light does not cross chunk borders the worldtype is single biome , biome is lush caves and there are no abnormal generation settings, coordinates can be clearly seen in screenshot provided and seed is 6897378577990291163
![[Mod] Michael Wobst](../../../data/avatars/users/37868.png){kind=small}
![[Mojang] Adrian Östergård](../../../data/assets/gravatar/nighter.jpeg){kind=small}
Very Importantwhen glow berries generate it doesnt cause light updates across chunk borders
relates to
![[Mojang] Harald Johansson](../../../data/avatars/users/18941.svg){kind=small}
[Mojang] Harald Johansson![[Mod] ampolive](../../../data/avatars/users/18949.svg){kind=small}
[Mod] Avoma I was also able to reproduce similar occurrences in mineshafts and even in random chunks too. I think that this might be the same bug as
MC-199952.
2021-10-19_22.00.12.png
[Mojang] Harald JohanssonClosely relates to
MC-172980.
![[Mojang] Georgii Gavrichev](../../../data/avatars/users/22428.png){kind=small}
![[Mojang] slicedlime](../../../data/assets/gravatar/slicedlime.jpeg){kind=small}
When glow berries and glow lichen generate it doesn't cause light updates across chunk borders
When glow berries and glow lichen generate itdoesn't cause light updates across chunk bordersGlow berries and glow lichen generation does not cause light updates across chunk borders
relates to
![[Mojang] Panda](../../../data/avatars/users/41658.png){kind=small}
[Mojang] Panda![[Bot] Piston](../../../data/avatars/users/31202.png){kind=small}
This ticket clones MC-218739.
Hello [Mod] Avoma, I couldn't find a way to reproduce the issue so far.
Did this by any chance occur together with MC-249431 or an other chunk saving issue?
Some of the reasons for MC-218739 were chunks not saving properly, it could still be a similar cause.
Are there any warnings or errors in the log when it happens?
Also do you know if it can happen the first time chunks are loaded, or does it appear in worlds after moving around and loading/unloading the chunks?
We do not have enough information to reproduce this issue.
Please provide the following information about the world you are playing in as text. Attaching a screenshot showing them is not enough.
This issue is being temporarily closed as Awaiting Response. Once the requested information has been delivered, the report will be reopened automatically.
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Can confirm.
i am unable to say wether this happens in 20w11a as the minor generation changes have invalidated the seed as an example of the bug and due to the specific nature of the bug, i cannot replicate it
Can confirm for 21w18a. Screenshot attached.
Seed: -1321301486773064317
Coordinates: /execute in minecraft:overworld run tp @s 353.79 16.54 -54.35 152.10 24.30
All these instances seem to be near worldspawn, so this might be caused by
MC-224729(see section "1. Spawn chunks"). Can you please answer the following questions to check this claim:can confirm, I had this issue also.
I believe my render distance was below 11, but I don't think I saved and quit the world beforehand. Also, I encountered this 350 blocks away from world spawn.
I can't reproduce it using that seed and coordinates though
Can confirm in 21w43a
[Mojang] Oscar Åkesson This might be a side effect of / relates to
MC-172980orMC-199952.Not sure if this is the same but I was able to reproduce this with the light sources in mineshafts as well.
MC-218739 - Mineshaft.png
MC-218739 - Mineshaft (2).png
[Mod] Avoma I was also able to reproduce similar occurrences in mineshafts and even in random chunks too. I think that this is a separate bug,
MC-199952.Is this still an issue in 1.18 pre-release 1?
Hi, yep, this issue is still present in 1.18 Pre-release 1. You can use the information provided below to reproduce this in 1.18 Pre-release 1.
MC-218739 - 1.18 Pre-release 1.mp4
MC-218739 - 1.18 Pre-release 1.png
[Mod] Avoma was the world created fresh in 1.18 Pre-release 1, or was it created earlier?
Hi [Mojang] Georgii Gavrichev, the world was generated completely fresh in 1.18 Pre-release 1. I didn't upgrade versions of the world or anything along those lines, just a complete 1.18 Pre-release 1 vanilla world.
You may not be able to reproduce this consistently with the above information I've provided as a result of lush cave decorators varying regardless of world seeds. (MC-219200). Nonetheless, I can assure you that the problem is still present.
I can confirm that this issue is still present in 1.18 Pre-release 5. MC-218739 - 1.18 Pre-release 5.png
You can use the information provided below to recreate this. I've also provided a world download of this particular world in which I experienced this behavior in. Hopefully, this helps in some shape. 
World Download: https://www.mediafire.com/file/f0myl0s6i9azdeo/MC-218739.zip/file