Details
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Type:
Bug
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Status: Reopened
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Resolution: Unresolved
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Affects Version/s: 20w08a, 20w12a, 20w15a, 20w17a, 20w19a, 1.16.2 Release Candidate 2, 1.16.2, 1.16.3, 1.16.4 Release Candidate 1, 1.16.4, 20w45a, 20w48a, 20w51a
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Fix Version/s: 20w22a
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Labels:None
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Confirmation Status:Confirmed
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Category:Lighting
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Mojang Priority:Important
Description
The bug
When 64 or more light emitting blocks get placed in one chunk at the same time, the light level in the neighboring chunks is not updated correctly.
To reproduce
- Create a new flatland world
- /time set midnight
- Run
/fill ~ ~ ~ ~63 ~ ~63 sea_lantern
while on the ground
- Enable chunk border overlay (F3+G)
→The light will not have updated properly in some places
- Replace the sea lanterns with air again
/fill ~ ~ ~ ~63 ~ ~63 sea_lantern
→
The light did not update properly again
Video
Original description
i was building a house and then all of a sudden i noticed that one half of the house was bright and lit while the other was mostly dark with light patches.
in the photo you can see the split. in the video i switch between the light block and dark block and they have the same light level even though they visually are different.
i had no lanterns before this and the same thing happened.
i tried updating the blocks around and it worked but then returned when i updated other areas.
you can see in the second video that it will just flicker when i try and update the blocks.
the other 2 screenshots are just other odd things that the lighting caused.
you should also know that i placed most of the roof with the /fill command if that helps
Attachments
Issue Links
- is duplicated by
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MC-175181 Respawn anchor explodes doesn't update lighting
- Resolved
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MC-179287 Light is not updated properly at chunk borders when a structure is loaded
- Resolved
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MC-180378 A light square is shown when respawn anchor is exploded
- Resolved
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MC-183049 Lighting Glitch - No light in Certain Crevices - Placing a torch and breaking fixes the Issue
- Resolved
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MC-184450 Light not recalculating over chunk borders
- Resolved
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MC-197745 Light Bug after exploding respawn anchor
- Resolved
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MC-207759 Redstone lamp malfunction
- Resolved
- relates to
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MCPE-58182 Light sources don't go beyond the chunk they're in
- Open
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MC-18526 Light with no nearby light sources
- Reopened
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MC-30939 Nether portal continues emitting light, even if portal is broken
- Reopened
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MC-197524 Border chunks do not enforce neighbors to be loaded, causing light updates to get stuck
- Resolved
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MC-166260 Light from fire that has gone out lingers at the border of chunks
- Reopened
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MC-186337 The lighting of the "Client" doesn't correspond to that of the "Server"
- Reopened
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MC-175169 Respawn Anchor can create ghost blocks when it explodes
- Resolved