[MC-9188] Fires can leave ghost lighting behind Created: 04/Feb/13  Updated: 01/Sep/20  Resolved: 23/Oct/18

Status: Resolved
Project: Minecraft: Java Edition
Component/s: None
Affects Version/s: Snapshot 13w05b, Minecraft 1.5, Snapshot 13w11a, Minecraft 1.5.1, Minecraft 1.7.4, Minecraft 14w34d, Minecraft 1.8, Minecraft 1.8.1, Minecraft 1.8.2-pre1, Minecraft 1.8.3, Minecraft 1.8.7, Minecraft 1.8.8, Minecraft 15w47c, Minecraft 1.8.9, Minecraft 1.9 Pre-Release 2, Minecraft 1.9, Minecraft 1.9.2, Minecraft 1.10.2, Minecraft 16w33a, Minecraft 1.11.2, Minecraft 1.12.2, Minecraft 18w05a, Minecraft 18w15a, Minecraft 18w20c, Minecraft 1.13
Fix Version/s: Minecraft 18w43a

Type: Bug
Reporter: Simons Mith Assignee: [Mojang] Georgii Gavrichev
Resolution: Fixed Votes: 24
Labels: fire, lighting, lightning
Environment:

Mac OS 10.5.8, oldish 3GB iMac.


Attachments: PNG File 2013-07-22_20.02.29.png     PNG File 2014-11-30_15.52.21.png     PNG File 2015-01-01_20.03.06.png     PNG File 2020-09-01_14.16.17.png     PNG File Capture d'écran 2018-04-12 13.28.12.png     Zip Archive Ghost Lighting.zip     PNG File lightingbug.png    
Issue Links:
Duplicate
is duplicated by MC-13324 Duplicate from MC-9188 Resolved
is duplicated by MC-24601 Fire light stays after death Resolved
is duplicated by MC-28488 Fire emits lite after it is put out i... Resolved
is duplicated by MC-42144 Fire light bug Resolved
is duplicated by MC-57276 Invisible light sources cause by lava... Resolved
is duplicated by MC-65358 Forest Fire Left Behind Light Emittin... Resolved
is duplicated by MC-74665 Clock with fire on top and lightning ... Resolved
is duplicated by MC-76062 Chunk is emmiting light, while there ... Resolved
is duplicated by MC-82388 Bright light appearing from nowhere Resolved
is duplicated by MC-96031 Lighting Glitch in end Resolved
is duplicated by MC-97891 Random patch of light Resolved
is duplicated by MC-105279 fire light bug Resolved
is duplicated by MC-106254 bug light after the fire. Resolved
is duplicated by MC-119125 random light without sources in the n... Resolved
is duplicated by MC-124765 Lights that do not disappear Resolved
is duplicated by MC-124904 There are any block that makes a ligh... Resolved
is duplicated by MC-129861 Terrain stays extremely bright at night Resolved
is duplicated by MC-134179 Fire light persistant Resolved
is duplicated by MC-148768 lighting bug Resolved
Relates
relates to MC-93132 Missing lighting updates for lazy chunks Resolved
relates to MC-3329 Naturally generated light sources (fi... Resolved
relates to MC-18526 Light with no nearby light sources Resolved
CHK:
Confirmation Status: Community Consensus
Game Mode: Survival

 Description   

The problem of ghost lights remaining after the fire has gone is well-known for /lightning/, but I have seen it for other fires too. I had a big fire in a jungle and now that area is riddled with phantom light sources. This fire burned for many game days and I generally stayed out of the area until it had practically all burned out because of horrendous lag it caused, but it obviously gave many, many chances for this bug to manifest.

Caveat: While the fire finally finished burning its last few blocks in release 13w05b, the sites of the phantom lighting that still remain may be from while I was running earlier releases. Possibly months earlier, because I have no idea how long it's been since I last visited this part of the world.

(If you have an old world like mine, are there any established ways to force it to update a large area to catch glitches like these, or is the game engine supposed to do it automatically?)



 Comments   
Comment by Galaxy_2Alex [ 01/Sep/20 ]

@Zach: Please open a new report with exact reproduction steps.

Comment by Zach Wolf [ 01/Sep/20 ]

I'm still seeing this behavior in 1.16.2

 

Comment by Joan Cruz [ 23/Nov/19 ]

I found that, for some reason, filling up the area with the Ghost Lighting with leaves and letting the leaves decay make the lighting go away. I have no idea why it works but it's a good way to remove it.

Sadly, you can only place decaying leaves with commands, so if you want to remove it on, say, a survival world, you're out of luck.

This glitch still hasn't been fixed and I have yet to know what causes it.

Comment by Xyphon [ 07/Nov/18 ]

Still in 1.13.2. I have part of a Jungle that spans hundreds of blocks riddled with this

Comment by [Helper] gaspoweredpick [ 12/Jul/18 ]

Can confirm for 1.13-pre7

Comment by Sphax [ 12/Apr/18 ]

That bug is back underwater in Snapshot 18w15a (see screenshot 2018-04-12 13.28.12)

Comment by Jon-Jacob [ 10/Jan/17 ]

I am still getting the bug in 1.11.2. I lit a forest on fire to remove it, then left to work on other things nearby, when I returned there are random areas of light still throughout the area. I tried F3+A like mentioned here, however that doesn't make the lighting glitches go away, placing blocks where the light sources are appears to work, however there is no way to actually know where the light is coming from which makes this option extremely tedious, and not really feasible. The world is in realms making it rather difficult for me to use MCEdit. There is also a second area in the world where this happened, however that area was created back in 1.8 or so, but I doubt that it has much to do with that.

Edit: I figured out a way to fix the lighting issues, however you can only do it when you are an op. Basically you make a large body of water (ie ocean) and clone it to about y100-200 depending on the forest you burned down. Then let the water fall and all ghost lights should be gone. Then just clone open air back to where you cloned the water and you should be good to go after the water has gone.

Comment by [Mod] Sonicwave [ 01/Sep/16 ]

Confirmed for 16w33a.

Comment by seema [ 29/Jul/16 ]

after 3 years no improvement ... please add a better light updating

Comment by Calvin Greenway [ 28/Apr/16 ]

Can confirm in 1.9.2.

Comment by Jeuv [ 23/Mar/16 ]

Can confirm in 1.9.

Comment by [Mod] redstonehelper [ 01/Dec/15 ]

Could be related to MC-93132.

Comment by Sealbudsman [ 01/Dec/15 ]

Confirmed in 1.8.8 and in 15w47c. To reproduce, I left the area of the fire so the chunks unload, then returned to wait for the fire to burn out. However (at least in 15w47c) if you then leave the area with the ghost light so the chunks unload, then return, the ghost light is gone.

Comment by a [ 26/Jun/15 ]

Fresh (not carried over from previous versions) phantom lighting from a surface lava pond in 1.8.7

Comment by karstvgl [ 07/Mar/15 ]

Added the world with ghost lighting as attachment. If it is fixed this world should not show any light glitches anymore.

Comment by Jeremy [ 05/Mar/15 ]

confirmed for 1.8.3.

Comment by KingSupernova [ 23/Jan/15 ]

By the way, you can use MCEdit to update the lighting in your world if you need a specific area fixed.

Comment by karstvgl [ 23/Jan/15 ]

Okay, I am with TheMogMiner in a TeamSpeak and I figured out how to reproduce.
1. Create a world with seed: -5514359264657335283 in creative
2. Teleport to -239 90 595, you will now be in a birch forest
3. Execute the following commands:
/spawnpoint
/gamerule keepInventory true
/gamerule randomTickSpeed 100
/gamerule doDaylightCycle false
/time set 18000
4. Get a flint and steel and set the forest on fire at many places, kind of like on this picture is shown http://imgur.com/1b47MUX
5. Fly out a few 100 blocks to be sure that the chunks unload.
6. Stay here a minuit orso to be sure that the fire is gone (how higher the randomTickSpeed how faster you can get back. But how more lag and how more likely the bug to fail. (Sounds strange))
7. Teleport back to -239 90 595 if it is right the trees are burned down and a ghost lighting is still there. Which will still be there also a world download will be available on the dropbox down below.
https://dl.dropboxusercontent.com/u/84211284/Ghost%20Lighting.zip

Comment by karstvgl [ 01/Jan/15 ]

For 1.8, 1.8.1 & 1.8.2-pre confirmed. Also was added before.

Comment by Marcono1234 [ 01/Jan/15 ]

Is maybe duplicated by MC-74665

Comment by [Mod] Sonicwave [ 27/Dec/14 ]

Confirmed for 1.8.2-pre1.

Comment by [Mod] Sonicwave [ 30/Nov/14 ]

Still in 1.8.1. It seems that even if I'm right next to the fire it leave light behind (previously it only happened if the chunk was unloaded AFAIK).

Comment by [Mod] Sonicwave [ 12/Sep/14 ]

Still in 1.8.

Comment by Anthony Martin [ 21/Aug/14 ]

Observed in 14w34d. Blaze attacks lit netherrack in an area that was completely dark. After putting out the fire, the affected areas were still fully lit.

Comment by Galaxy_2Alex [ 16/Jul/14 ]

Yes, it is indeed still a bug.

Comment by Marcono1234 [ 16/Jul/14 ]

As this is only a workaround it is really important to keep this open as it is a bug
Maybe not one of the heavy ones but still a bug

Comment by Simons Mith [ 16/Jul/14 ]

Yes, I think F3+A is a reasonable workaround. Demanding more than that would be greedy. So, OK to close, I guess, thx.

Comment by ggxl [ 28/Jun/14 ]

F3+A reloads all the chunks.

Comment by Talven81 [ 26/Nov/13 ]

Is this still a concern in the current Minecraft version 1.7.2 / Launcher version 1.3.4 ? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Comment by Lars Kikkert [ 22/Jul/13 ]

another one, by fireballs

Comment by C.J. Wijtmans [ 13/Jul/13 ]

its a feature not a bug.

Comment by Simons Mith [ 18/Mar/13 ]

I haven't had any /new/ lighting glitches, but if there's a way to trigger bulk updates throughout a region and clear the old ones, that would be wonderful!

Comment by Simons Mith [ 10/Feb/13 ]

I can sometimes clear individual glitches by forcing a block update nearby. But most of them originate from points in space where leaf blocks used to be, so there's no visual hint as to their precise location, making building over them a real chore. And given the sheer number of glitches, clearing them all up would be thoroughly impractical. I'm hoping there is (or will be) some way of prodding the game engine to clear up at least a chunk at a time, otherwise I'm stuck with them for the foreseeable future.

Comment by Joss Eden [ 05/Feb/13 ]

I've seen this kind of bug before but with lava, and before this snapshot. The only way I fixed it was put a block over the "source" and it'd go away, but the moment the block I placed is removed, it is back. Try placing dirt around the area(s) and see if that helps, that is the only solution I can think of, or maybe try restarting your game or reloading the world?

Comment by Simons Mith [ 04/Feb/13 ]

Attachment - lightingbug.png

World version 13w05b, and this is part of the aftermath of an enormous jungle fire. Many areas have spurious light sources.

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