Fires can leave ghost lighting behind
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?)
Environment
Mac OS 10.5.8, oldish 3GB iMac.
Linked Issues
is duplicated by19
MC-13324Duplicate from MC-9188DuplicateMC-24601Fire light stays after deathDuplicateMC-28488Fire emits lite after it is put out in an unloaded chunk.DuplicateMC-42144Fire light bugDuplicateMC-57276Invisible light sources cause by lava burning down treesDuplicateMC-65358Forest Fire Left Behind Light Emitting Air BlocksDuplicateMC-74665Clock with fire on top and lightning creates fake light sourceDuplicateMC-76062Chunk is emmiting light, while there is no light close to it.DuplicateMC-82388Bright light appearing from nowhereDuplicateMC-96031Lighting Glitch in endDuplicateMC-97891Random patch of lightDuplicateMC-105279fire light bugDuplicateMC-106254bug light after the fire.DuplicateMC-119125random light without sources in the netherDuplicateMC-124765Lights that do not disappearDuplicateMC-124904There are any block that makes a light source,but there is still some light.DuplicateMC-129861Terrain stays extremely bright at nightDuplicateMC-134179Fire light persistantDuplicateMC-148768lighting bugDuplicate
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Created Issue:
Fires leave ghost lighting behind
The problem of ghost lighting remaining after the fire has gone is well-known for lighting, 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.
However, 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?
Environment
Mac OS 10.5.8, oldish 3GB iMac.
Firesleave ghost lighting behindAll fires, not just lightning, can leave ghost lighting behind
The problem of ghost light
ingremaining after the fire has gone is well-known for lighting, 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.However, 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?
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.
However, 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?
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.
However, 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?
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?)
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Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.
This appears fixed. (Touch wood.) Found the remains of a decent-sized fire which had burned out, and I could find no phantom light sources. The query about whether it's possible to trigger bulk updates throughout a region still stands though!
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![[Mod] Neko](../../../data/avatars/users/92901.png){kind=small}
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All fires, not just lightning,can leave ghost lighting behindFires can leave ghost lighting behind
![[Mojang] Georgii Gavrichev](../../../data/avatars/users/22428.png){kind=small}
[Mojang] Georgii Gavrichev![[Mod] violine1101](../../../data/avatars/users/92858.png){kind=small}
is duplicated by
Dupe of MC-9188.
Duplicate of MC-9188.
Probably duplicates MC-9188
Please do not mark unreleased versions (anything starting with "Future Version") as affected. You don't have access to them yet.
Thank you for your report.
However, your ticket has been resolved as a duplicate.
This issue has been linked to the original bugreport: MC-9188. You can find or add further information on that report.
Please search before reporting any bugs, as it's likely that one exists already.
Likely duplicate of MC-9188 (ghost lighting)
![[Mod] Les3awe](../../../data/avatars/users/79847.png){kind=small}
This issue duplicates MC-9188.
If you place a bunch of fires with /fill, then clear them changing the block to air, fire leaves ghost lighting similar to MC-9188
Attachment - lightingbug.png
World version 13w05b, and this is part of the aftermath of an enormous jungle fire. Many areas have spurious light sources.
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?
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.
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!
its a feature not a bug.
another one, by fireballs
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.
F3+A reloads all the chunks.
Yes, I think F3+A is a reasonable workaround. Demanding more than that would be greedy. So, OK to close, I guess, thx.
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
Yes, it is indeed still a bug.
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.
Still in 1.8.
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).
Confirmed for 1.8.2-pre1.
Is maybe duplicated by
MC-74665For 1.8, 1.8.1 & 1.8.2-pre confirmed. Also was added before.
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
By the way, you can use MCEdit to update the lighting in your world if you need a specific area fixed.
confirmed for 1.8.3.
Added the world with ghost lighting as attachment. If it is fixed this world should not show any light glitches anymore.
Fresh (not carried over from previous versions) phantom lighting from a surface lava pond in 1.8.7
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.
Could be related to
MC-93132.Can confirm in 1.9.
Can confirm in 1.9.2.
after 3 years no improvement ... please add a better light updating
Confirmed for 16w33a.
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.
That bug is back underwater in Snapshot 18w15a (see screenshot 2018-04-12 13.28.12)
Can confirm for 1.13-pre7
Still in 1.13.2. I have part of a Jungle that spans hundreds of blocks riddled with this
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.
I'm still seeing this behavior in 1.16.2
@Zach: Please open a new report with exact reproduction steps.