MC-244698Lighting sometimes ceases to exist
Hello there!
So, I've converted my Infdev world (previously converted to 1.17.1) and in some places lighting just stops. When it's daytime, there are some black spots in which lighting doesn't work and the mobs can spawn there. The black spot just ignores that nothing is above it, it's just pure air. The "black hole" as I would like to call it exists to a particular Y level like 110 (shown in the video below). I've even experienced the same issue in a newly generated 1.18 world. And now I'm afraid that I accidentaly broke my main world while converting it to 1.18 (glad that backups are a thing). Like, why does it even exist ? The lighting system didn't change. Maybe you know what causes this bug ? Also, the new caves don't generate under the Infdev chunks for some reason (maybe it's because caves didn't generate in the tested Infdev version)? And another thing. It seems that the issue is not consistant, because the lighting error disappeared after relaunching the world.
Have a nice day everyone 
Environment
Windows 11 Pro 64-bit
Java - Version 8 Update 311 (build 1.8.0_311-b11)
Intel Core i5-11600
16 GB RAM DDR4
Geforce RTX 2060
Main Drive - 512 GB SSD
Other Drive - 2 TB HDD
Created Issue:
Lighting sometimes ceases to exist
Hello there!
So, I've converted my Infdev world (previously converted to 1.17.1) and in some places lighting just stops. When it's daytime, there are some black spots in which lighting doesn't work and the mobs can spawn there. The black spot just ignores that nothing is above it, it's just pure air. The "black hole" as I would like to call it exists to a particular Y level like 110 (shown in the video below). I've even experienced the same issue in a newly generated 1.18 world. And now I'm afraid that I accidentaly broke my main world while converting it to 1.18 (glad that backups are a thing). Like, why does it even exist ? The lighting system didn't change. Maybe you know what causes this bug ? Also, the new caves don't generate under the Infdev chunks for some reason (maybe it's because caves didn't generate in the tested Infdev version)? And another thing. It seems that the issue is not consistant, because the lighting error disappeared after relaunching the world.
Have a nice day everyone
Environment
Windows 11 Pro 64-bit
Java - Version 8 Update 311 (build 1.8.0_311-b11)
Intel Core i5-11600
16 GB RAM DDR4
Geforce RTX 2060
Main Drive - 512 GB SSD
Other Drive - 2 TB HDD
![[Mod] Michael Wobst](../../../data/avatars/users/37868.png){kind=small}
From the save menu, click your world and click Edit > Optimize World > Erased cached data. Please add information about whether this resolves the issue.