Igloos can generate floating
The Bug:
Igloos can generate floating.
Here is an example:
Seed: 1181589361754893118 Coordinates: /execute in minecraft:overworld run tp @s 93517.71 108.00 -2896.26 317.96 -6.43
Steps to Reproduce:
- Generate a world with the seed provided above and teleport to the given coordinates.
- Look closely at how the igloo has generated.
- Take note as to whether or not igloos can generate floating.
Observed Behavior:
Igloos can generate floating.
Expected Behavior:
Igloos would not be able to generate floating. Instead, they should fill the air below them with some kind of block or just not be able to spawn floating altogether.
Linked Issues
is duplicated by11
MC-92237Iglo's Spawning in mid airDuplicateMC-184414Igloo basements not spawning, even with trapdoor.DuplicateMC-238018Flying IglooDuplicateMC-238898Igloos can generate floating with trapdoor but without basement.DuplicateMC-238918Igloos can generate suspended in the airDuplicateMC-239220world generationDuplicateMC-241301Strange Igloo generationDuplicateMC-243294Igloo generated on weird positionDuplicateMC-253117Igloo can generate on the side of the mountain, cutting off the basement and leaving structure floatingDuplicateMC-257099Igloo isn't generated well on the hillDuplicateMC-277728Igloo generated floating in the airDuplicaterelates to4
Low
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Created Issue:
Igloo Structure Spawn Bug (Spawning above Ground)
The New Igloo Structure can Spawn above the Ground.
Environment
Windows 10 Home Java 1.8.0_25 Minecraft Launcher 1.6.48
Attachments1
2015-10-21_21.34.28.png
The New Igloo Structure can Spawn above the Ground.
To reproduce:
1. Create new world with seed
Click on create new World type in the Seed after that goto Word Type and set it to custom click on that custom Button under World Type the Third Button on the Bottom and type in The Textbar above
{"coordinateScale":684.412,"heightScale":684.412,"lowerLimitScale":512.0,"upperLimitScale":512.0,"depthNoiseScaleX":200.0,"depthNoiseScaleZ":200.0,"depthNoiseScaleExponent":0.5,"mainNoiseScaleX":80.0,"mainNoiseScaleY":160.0,"mainNoiseScaleZ":80.0,"baseSize":8.5,"stretchY":12.0,"biomeDepthWeight":1.0,"biomeDepthOffset":0.0,"biomeScaleWeight":1.0,"biomeScaleOffset":0.0,"seaLevel":63,"useCaves":true,"useDungeons":true,"dungeonChance":100,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useMonuments":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":40,"useLavaLakes":true,"lavaLakeChance":80,"useLavaOceans":false,"fixedBiome":-1,"biomeSize":1,"riverSize":4,"dirtSize":33,"dirtCount":40,"dirtMinHeight":0,"dirtMaxHeight":256,"gravelSize":33,"gravelCount":40,"gravelMinHeight":0,"gravelMaxHeight":256,"graniteSize":33,"graniteCount":40,"graniteMinHeight":0,"graniteMaxHeight":80,"dioriteSize":33,"dioriteCount":40,"dioriteMinHeight":0,"dioriteMaxHeight":80,"andesiteSize":33,"andesiteCount":40,"andesiteMinHeight":0,"andesiteMaxHeight":80,"coalSize":17,"coalCount":40,"coalMinHeight":0,"coalMaxHeight":128,"ironSize":9,"ironCount":40,"ironMinHeight":0,"ironMaxHeight":64,"goldSize":9,"goldCount":40,"goldMinHeight":0,"goldMaxHeight":32,"redstoneSize":8,"redstoneCount":40,"redstoneMinHeight":0,"redstoneMaxHeight":16,"diamondSize":8,"diamondCount":40,"diamondMinHeight":0,"diamondMaxHeight":16,"lapisSize":7,"lapisCount":40,"lapisCenterHeight":16,"lapisSpread":16}then TP to -921 69 294
The New Igloo Structure can Spawn above the Ground.
To reproduce:
1. Create new world with seed
Click on create new World type in the Seed after that goto Word Type and set it to custom click on that custom Button under World Type the Third Button on the Bottom and type in The Textbar above
{"coordinateScale":684.412,"heightScale":684.412,"lowerLimitScale":512.0,"upperLimitScale":512.0,"depthNoiseScaleX":200.0,"depthNoiseScaleZ":200.0,"depthNoiseScaleExponent":0.5,"mainNoiseScaleX":80.0,"mainNoiseScaleY":160.0,"mainNoiseScaleZ":80.0,"baseSize":8.5,"stretchY":12.0,"biomeDepthWeight":1.0,"biomeDepthOffset":0.0,"biomeScaleWeight":1.0,"biomeScaleOffset":0.0,"seaLevel":63,"useCaves":true,"useDungeons":true,"dungeonChance":100,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useMonuments":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":40,"useLavaLakes":true,"lavaLakeChance":80,"useLavaOceans":false,"fixedBiome":-1,"biomeSize":1,"riverSize":4,"dirtSize":33,"dirtCount":40,"dirtMinHeight":0,"dirtMaxHeight":256,"gravelSize":33,"gravelCount":40,"gravelMinHeight":0,"gravelMaxHeight":256,"graniteSize":33,"graniteCount":40,"graniteMinHeight":0,"graniteMaxHeight":80,"dioriteSize":33,"dioriteCount":40,"dioriteMinHeight":0,"dioriteMaxHeight":80,"andesiteSize":33,"andesiteCount":40,"andesiteMinHeight":0,"andesiteMaxHeight":80,"coalSize":17,"coalCount":40,"coalMinHeight":0,"coalMaxHeight":128,"ironSize":9,"ironCount":40,"ironMinHeight":0,"ironMaxHeight":64,"goldSize":9,"goldCount":40,"goldMinHeight":0,"goldMaxHeight":32,"redstoneSize":8,"redstoneCount":40,"redstoneMinHeight":0,"redstoneMaxHeight":16,"diamondSize":8,"diamondCount":40,"diamondMinHeight":0,"diamondMaxHeight":16,"lapisSize":7,"lapisCount":40,"lapisCenterHeight":16,"lapisSpread":16}then TP to -921 69 294
The New Igloo Structure can Spawn above the Ground.
To reproduce:
1. Create new world with seed 48572
2. Customize it:{"coordinateScale":684.412,"heightScale":684.412,"lowerLimitScale":512.0,"upperLimitScale":512.0,"depthNoiseScaleX":200.0,"depthNoiseScaleZ":200.0,"depthNoiseScaleExponent":0.5,"mainNoiseScaleX":80.0,"mainNoiseScaleY":160.0,"mainNoiseScaleZ":80.0,"baseSize":8.5,"stretchY":12.0,"biomeDepthWeight":1.0,"biomeDepthOffset":0.0,"biomeScaleWeight":1.0,"biomeScaleOffset":0.0,"seaLevel":63,"useCaves":true,"useDungeons":true,"dungeonChance":100,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useMonuments":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":40,"useLavaLakes":true,"lavaLakeChance":80,"useLavaOceans":false,"fixedBiome":-1,"biomeSize":1,"riverSize":4,"dirtSize":33,"dirtCount":40,"dirtMinHeight":0,"dirtMaxHeight":256,"gravelSize":33,"gravelCount":40,"gravelMinHeight":0,"gravelMaxHeight":256,"graniteSize":33,"graniteCount":40,"graniteMinHeight":0,"graniteMaxHeight":80,"dioriteSize":33,"dioriteCount":40,"dioriteMinHeight":0,"dioriteMaxHeight":80,"andesiteSize":33,"andesiteCount":40,"andesiteMinHeight":0,"andesiteMaxHeight":80,"coalSize":17,"coalCount":40,"coalMinHeight":0,"coalMaxHeight":128,"ironSize":9,"ironCount":40,"ironMinHeight":0,"ironMaxHeight":64,"goldSize":9,"goldCount":40,"goldMinHeight":0,"goldMaxHeight":32,"redstoneSize":8,"redstoneCount":40,"redstoneMinHeight":0,"redstoneMaxHeight":16,"diamondSize":8,"diamondCount":40,"diamondMinHeight":0,"diamondMaxHeight":16,"lapisSize":7,"lapisCount":40,"lapisCenterHeight":16,"lapisSpread":16}3.
/tp @p -921 80 294
is duplicated by
relates to
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The
New IglooStructure canSpawn above theGround.To reproduce:
1. Create new world with seed 48572
2. Customize it:{"coordinateScale":684.412,"heightScale":684.412,"lowerLimitScale":512.0,"upperLimitScale":512.0,"depthNoiseScaleX":200.0,"depthNoiseScaleZ":200.0,"depthNoiseScaleExponent":0.5,"mainNoiseScaleX":80.0,"mainNoiseScaleY":160.0,"mainNoiseScaleZ":80.0,"baseSize":8.5,"stretchY":12.0,"biomeDepthWeight":1.0,"biomeDepthOffset":0.0,"biomeScaleWeight":1.0,"biomeScaleOffset":0.0,"seaLevel":63,"useCaves":true,"useDungeons":true,"dungeonChance":100,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useMonuments":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":40,"useLavaLakes":true,"lavaLakeChance":80,"useLavaOceans":false,"fixedBiome":-1,"biomeSize":1,"riverSize":4,"dirtSize":33,"dirtCount":40,"dirtMinHeight":0,"dirtMaxHeight":256,"gravelSize":33,"gravelCount":40,"gravelMinHeight":0,"gravelMaxHeight":256,"graniteSize":33,"graniteCount":40,"graniteMinHeight":0,"graniteMaxHeight":80,"dioriteSize":33,"dioriteCount":40,"dioriteMinHeight":0,"dioriteMaxHeight":80,"andesiteSize":33,"andesiteCount":40,"andesiteMinHeight":0,"andesiteMaxHeight":80,"coalSize":17,"coalCount":40,"coalMinHeight":0,"coalMaxHeight":128,"ironSize":9,"ironCount":40,"ironMinHeight":0,"ironMaxHeight":64,"goldSize":9,"goldCount":40,"goldMinHeight":0,"goldMaxHeight":32,"redstoneSize":8,"redstoneCount":40,"redstoneMinHeight":0,"redstoneMaxHeight":16,"diamondSize":8,"diamondCount":40,"diamondMinHeight":0,"diamondMaxHeight":16,"lapisSize":7,"lapisCount":40,"lapisCenterHeight":16,"lapisSpread":16}3.
/tp @p -921 80 294The bug
The igloo structure can spawn above the ground.
How to reproduce
- Create a customized world with the seed 48572 and the following preset:
{"coordinateScale":684.412,"heightScale":684.412,"lowerLimitScale":512.0,"upperLimitScale":512.0,"depthNoiseScaleX":200.0,"depthNoiseScaleZ":200.0,"depthNoiseScaleExponent":0.5,"mainNoiseScaleX":80.0,"mainNoiseScaleY":160.0,"mainNoiseScaleZ":80.0,"baseSize":8.5,"stretchY":12.0,"biomeDepthWeight":1.0,"biomeDepthOffset":0.0,"biomeScaleWeight":1.0,"biomeScaleOffset":0.0,"seaLevel":63,"useCaves":true,"useDungeons":true,"dungeonChance":100,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useMonuments":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":40,"useLavaLakes":true,"lavaLakeChance":80,"useLavaOceans":false,"fixedBiome":-1,"biomeSize":1,"riverSize":4,"dirtSize":33,"dirtCount":40,"dirtMinHeight":0,"dirtMaxHeight":256,"gravelSize":33,"gravelCount":40,"gravelMinHeight":0,"gravelMaxHeight":256,"graniteSize":33,"graniteCount":40,"graniteMinHeight":0,"graniteMaxHeight":80,"dioriteSize":33,"dioriteCount":40,"dioriteMinHeight":0,"dioriteMaxHeight":80,"andesiteSize":33,"andesiteCount":40,"andesiteMinHeight":0,"andesiteMaxHeight":80,"coalSize":17,"coalCount":40,"coalMinHeight":0,"coalMaxHeight":128,"ironSize":9,"ironCount":40,"ironMinHeight":0,"ironMaxHeight":64,"goldSize":9,"goldCount":40,"goldMinHeight":0,"goldMaxHeight":32,"redstoneSize":8,"redstoneCount":40,"redstoneMinHeight":0,"redstoneMaxHeight":16,"diamondSize":8,"diamondCount":40,"diamondMinHeight":0,"diamondMaxHeight":16,"lapisSize":7,"lapisCount":40,"lapisCenterHeight":16,"lapisSpread":16}- /tp @p -921 80 294
Windows 10 Home Java 1.8.0_25 Minecraft Launcher 1.6.48
IglooStructureSpawn Bug (SpawningaboveGround)Igloo structure can spawn above ground
![[Mojang] Nathan Adams](../../../data/assets/gravatar/dinnerbone.png){kind=small}
![[Mod] violine1101](../../../data/avatars/users/92858.png){kind=small}
is duplicated by
![[Mojang] Adrian Östergård](../../../data/assets/gravatar/nighter.jpeg){kind=small}
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The bug
The igloo structure can spawn above the ground.
How to reproduce
- Create a customized world with the seed 48572 and the following preset:
{"coordinateScale":684.412,"heightScale":684.412,"lowerLimitScale":512.0,"upperLimitScale":512.0,"depthNoiseScaleX":200.0,"depthNoiseScaleZ":200.0,"depthNoiseScaleExponent":0.5,"mainNoiseScaleX":80.0,"mainNoiseScaleY":160.0,"mainNoiseScaleZ":80.0,"baseSize":8.5,"stretchY":12.0,"biomeDepthWeight":1.0,"biomeDepthOffset":0.0,"biomeScaleWeight":1.0,"biomeScaleOffset":0.0,"seaLevel":63,"useCaves":true,"useDungeons":true,"dungeonChance":100,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useMonuments":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":40,"useLavaLakes":true,"lavaLakeChance":80,"useLavaOceans":false,"fixedBiome":-1,"biomeSize":1,"riverSize":4,"dirtSize":33,"dirtCount":40,"dirtMinHeight":0,"dirtMaxHeight":256,"gravelSize":33,"gravelCount":40,"gravelMinHeight":0,"gravelMaxHeight":256,"graniteSize":33,"graniteCount":40,"graniteMinHeight":0,"graniteMaxHeight":80,"dioriteSize":33,"dioriteCount":40,"dioriteMinHeight":0,"dioriteMaxHeight":80,"andesiteSize":33,"andesiteCount":40,"andesiteMinHeight":0,"andesiteMaxHeight":80,"coalSize":17,"coalCount":40,"coalMinHeight":0,"coalMaxHeight":128,"ironSize":9,"ironCount":40,"ironMinHeight":0,"ironMaxHeight":64,"goldSize":9,"goldCount":40,"goldMinHeight":0,"goldMaxHeight":32,"redstoneSize":8,"redstoneCount":40,"redstoneMinHeight":0,"redstoneMaxHeight":16,"diamondSize":8,"diamondCount":40,"diamondMinHeight":0,"diamondMaxHeight":16,"lapisSize":7,"lapisCount":40,"lapisCenterHeight":16,"lapisSpread":16}- /tp @p -921 80 294
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is duplicated by
relates to
is duplicated by
is duplicated by
is duplicated by
is duplicated by
The Bug
The igloo structure can spawn above the ground.
How to reproduce
Seed by Loek van Vucht
- Create a World with seed
-3038033905908571340
- Go to 8755, 66, 597
/tp @p 8755 66 597Observed Behavior
Igloos can spawn floating in the air.
Expected Behavior
Igloos would not be able to spawn floating in the air. Instead, they should fill the air below them with some kind of block or just not be able to spawn floating altogether.
![[Mod] bemoty](../../../data/avatars/users/50554.png){kind=small}
relates to
![[Mod] OcelotOnesie](../../../data/avatars/users/43220.png){kind=small}
is duplicated by
is duplicated by
The Bug
The igloo structure can spawn above the ground.
How to reproduce
Seed by Loek van Vucht
- Create a World with seed
-3038033905908571340
- Go to 8755, 66, 597
/tp @p 8755 66 597Observed Behavior
Igloos can spawn floating in the air.
Expected Behavior
Igloos would not be able to spawn floating in the air. Instead, they should fill the air below them with some kind of block or just not be able to spawn floating altogether.
The Bug
The igloo structure can spawn above the ground.
How to reproduce
Seed by Loek van Vucht
- Create a World with seed
-3038033905908571340- Go to 8755, 66, 597
/tp @p 8755 66 597Observed Behavior
Igloos can spawn floating in the air.
Expected Behavior
Igloos would not be able to spawn floating in the air. Instead, they should fill the air below them with some kind of block or just not be able to spawn floating altogether.
![[Mod] ampolive](../../../data/avatars/users/18949.svg){kind=small}
is duplicated by
is duplicated by
The Bug
The igloo structure can spawn above the ground.
HowtoreproduceSeed by Loek van Vucht
- Create a World with seed
-3038033905908571340- Go to 8755, 66, 597
/tp @p 8755 66 597Observed Behavior
Igloos can s
pawn floating in the air.Expected Behavior
Igloos would not be able to
spawnfloatingin the air. Instead, they should fill the air below them with some kind of block or just not be able to spawn floating altogether.The Bug:
Igloos can sometimes generate floating.
Here is an example:
Version: 1.19.3Seed: 1359968930092793278 Coordinates: /execute in minecraft:overworld run tp @s 43715.33 64.00 4650.07 -180.93 -49.95Steps to Reproduce:
- Generate a world with the seed provided above and teleport to the given coordinates.
- Look closely at how the igloo has generated.
- Take note as to whether or not igloos can sometimes generate floating.
Observed Behavior:
Igloos can sometimes generate floating.
Expected Behavior:
Igloos would not be able to generate floating. Instead, they should fill the air below them with some kind of block or just not be able to spawn floating altogether.
Igloostructure can spawn above groundIgloos can sometimes generate floating
The Bug:
Igloos can
sometimesgenerate floating.Here is an example:
Version: 1.19.3Seed: 1359968930092793278 Coordinates: /execute in minecraft:overworld run tp @s 43715.33 64.00 4650.07 -180.93 -49.95Steps to Reproduce:
- Generate a world with the seed provided above and teleport to the given coordinates.
- Look closely at how the igloo has generated.
- Take note as to whether or not igloos can
sometimesgenerate floating.Observed Behavior:
Igloos can
sometimesgenerate floating.Expected Behavior:
Igloos would not be able to generate floating. Instead, they should fill the air below them with some kind of block or just not be able to spawn floating altogether.
Igloos cansometimesgenerate floating
The Bug:
Igloos can generate floating.
Here is an example:
Version: 1.19.3Seed: 1359968930092793278 Coordinates: /execute in minecraft:overworld run tp @s43715.33 64.00 4650.07 -180.93-49.95Steps to Reproduce:
- Generate a world with the seed provided above and teleport to the given coordinates.
- Look closely at how the igloo has generated.
- Take note as to whether or not igloos can generate floating.
Observed Behavior:
Igloos can generate floating.
Expected Behavior:
Igloos would not be able to generate floating. Instead, they should fill the air below them with some kind of block or just not be able to spawn floating altogether.
The Bug:
Igloos can generate floating.
Here is an example:
Version: 1.20.1Seed: 1181589361754893118 Coordinates: /execute in minecraft:overworld run tp @s 93517.71 108.00 -2896.26 317.96 -6.43Steps to Reproduce:
- Generate a world with the seed provided above and teleport to the given coordinates.
- Look closely at how the igloo has generated.
- Take note as to whether or not igloos can generate floating.
Observed Behavior:
Igloos can generate floating.
Expected Behavior:
Igloos would not be able to generate floating. Instead, they should fill the air below them with some kind of block or just not be able to spawn floating altogether.
![[Mojang] slicedlime](../../../data/assets/gravatar/slicedlime.jpeg){kind=small}
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is duplicated by
Duplicate of MC-91084. Please attach your seed and coordinates there.
Please link to this comment in the description
The following is based on decompiled version of Minecraft 1.9 using MCP 9.24 beta.
It looks like the reason for this is that most of the structures generate at a fixed height. For desert pyramids, jungle pyramids, swamp huts and igloos this is 64 (see for example the constructor net.minecraft.world.gen.structure.ComponentScatteredFeaturePieces.DesertPyramid.DesertPyramid(Random, int, int)).
Probably relates to or describes that same problem as MC-91084
Thank you for your report!
We're tracking this issue in MC-91084, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
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The igloo part is MC-91084.
No need. I can confirm this happens in vanilla, but this is a duplicate of MC-91084.
I don't think it is a duplicate of MC-91084, it seems related to this bug but not the same.
Thank you for your report!
We're tracking this issue in MC-91084, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
The Bug:
Igloos can generate without basements but with trapdoors leading to basements.
It's important to note that this report is not about the igloo generating in mid-air; that problem is being tracked on MC-91084. This report (MC-238539) is about igloos have generating without a basement but with a trapdoor. In other words, if a basement isn't generated, there shouldn't be a trapdoor leading to a non-existent basement.
Here is an example:
Seed: 1359968930092793278 Coordinates: /execute in minecraft:overworld run tp @s 43715.33 64.00 4650.07 -180.93 -49.95
Steps to Reproduce:
- Generate a world with the seed provided above and teleport to the given coordinates.
- Look closely at how the igloo has generated.
- Take note as to whether or not igloos can generate without basements but with trapdoors leading to basements.
Observed Behavior:
Igloos can generate without basements but with trapdoors leading to basements.
Expected Behavior:
Igloos would not be able to generate without basements when there are trapdoors leading to basements within the structure.
Thank you for your report!
We're tracking this issue in MC-91084, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
Thank you for your report!
We're tracking this issue in MC-91084, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
Duplicate of MC-91084
Duplicate of MC-91084
Thank you for your report!
We're tracking this issue in MC-91084, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
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Duplicate of MC-91084
Thank you for your report!
We're tracking this issue in MC-91084, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
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📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
– I am a bot. This action was performed automatically! The ticket was resolved by one of our moderators, and I left this message to give more information to you.
Thank you for your report!
We're tracking this issue in MC-91084, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
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The issue with igloos generating completely or barely floating is MC-91084. As for the basement, it's not being cut off by the caves below it; the igloo just generates with a trapdoor but no basement which is being tracked at MC-238539 as mentioned above already. This ticket duplicates both MC-238539 and MC-91084. Also, in the future, just remember to test whether issues occur under complete vanilla circumstances before creating reports, as problems that occur under modified circumstances (such as Fabric as shown in the provided attachment) are not taken in on the bug tracker. 
Duplicate of MC-91084.
Thank you for your report!
We're tracking this issue in MC-91084, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
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Not sure if this belongs here or in MC-91084, but I found this:
Duplicates MC-91084
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We're tracking this issue in MC-91084, so this ticket is being resolved and linked as a duplicate.
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Please provide seed and coordinates.
Can confirm. Saw this earlier when testing out the new snapshot.
At what coordinates and with what seed ?
I Used Custom World Settings Recreating won't work i need to find another one in a Normal World
You can load the old world, press F3 for coordinates and type /seed in the chat. If you make a screenshot of that, you're done.
I tried recreating with the seed it just makes another World because when i created the World i changed generation settings of every block but if you want the seed 48572 but if you land on a Forest then it does not work for you either
One of the Settings i changed was the Biome size
I found another one but this time it is in the Ground Seed 48572 the coordinates are X: -3788 72 -3563
The Ground Igloo
Ok i found out how to recreate my old World
1. Click on create new World type in the Seed after that goto Word Type and set it to custom click on that custom Button under World Type the Third Button on the Bottom and type in The Textbar above
{"coordinateScale":684.412,"heightScale":684.412,"lowerLimitScale":512.0,"upperLimitScale":512.0,"depthNoiseScaleX":200.0,"depthNoiseScaleZ":200.0,"depthNoiseScaleExponent":0.5,"mainNoiseScaleX":80.0,"mainNoiseScaleY":160.0,"mainNoiseScaleZ":80.0,"baseSize":8.5,"stretchY":12.0,"biomeDepthWeight":1.0,"biomeDepthOffset":0.0,"biomeScaleWeight":1.0,"biomeScaleOffset":0.0,"seaLevel":63,"useCaves":true,"useDungeons":true,"dungeonChance":100,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useMonuments":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":40,"useLavaLakes":true,"lavaLakeChance":80,"useLavaOceans":false,"fixedBiome":-1,"biomeSize":1,"riverSize":4,"dirtSize":33,"dirtCount":40,"dirtMinHeight":0,"dirtMaxHeight":256,"gravelSize":33,"gravelCount":40,"gravelMinHeight":0,"gravelMaxHeight":256,"graniteSize":33,"graniteCount":40,"graniteMinHeight":0,"graniteMaxHeight":80,"dioriteSize":33,"dioriteCount":40,"dioriteMinHeight":0,"dioriteMaxHeight":80,"andesiteSize":33,"andesiteCount":40,"andesiteMinHeight":0,"andesiteMaxHeight":80,"coalSize":17,"coalCount":40,"coalMinHeight":0,"coalMaxHeight":128,"ironSize":9,"ironCount":40,"ironMinHeight":0,"ironMaxHeight":64,"goldSize":9,"goldCount":40,"goldMinHeight":0,"goldMaxHeight":32,"redstoneSize":8,"redstoneCount":40,"redstoneMinHeight":0,"redstoneMaxHeight":16,"diamondSize":8,"diamondCount":40,"diamondMinHeight":0,"diamondMaxHeight":16,"lapisSize":7,"lapisCount":40,"lapisCenterHeight":16,"lapisSpread":16}then TP to -921 69 294
Thanks.
Hope you can get it i come back tomorrow
if you need help with that
Added three pictures of an igloo on ice, not sure if this belongs here though.
For 15w44b
@enderdragon,
That looks okay to me... Why could an iglo not be on ice?
@Valentijn Kas Because naturally generated ice only remains ice if there are no blocks above it. It's not standing on ice; it's standing on water.
I observed an igloo with the basement trapdoor, except it'd spawned above empty air and thus didn't contain the basement it usually would have.
Confirmed for 1.14.4.
Seed: -3038033905908571340
Coordinates: /tp @p 8755 66 597
Confirmed in 1.15.2 and 1.16 Release Candidate 1 using the seed provided by Loek van Vucht.
Can confirm in 20w49a using the seed and coordinates provided by Loek van Vucht.
Can confirm in 20w51a. Here an extra seed along with coordinates.
Can confirm in 21w05b.
Can confirm in 1.16.5 and 21w08b.
Relates to MC-140452.
Can confirm in 21w11a.
Can confirm in 1.17.1.
this issue is fixed in 20w40a?
Confirmed in 21w41a
I can confirm this in 21w41a. Here are some extra details regarding this problem.
The Bug:
Igloos can spawn floating in the air.
Steps to Reproduce:
Observed Behavior:
Igloos can spawn floating in the air.
Expected Behavior:
Igloos would not be able to spawn floating in the air. Instead, they should fill the air below them with some kind of block or just not be able to spawn floating altogether.
Confirmed in 21w44a
seed: -2744854254946197173
coords: /execute in minecraft:overworld run tp @s 176.36 67.49 32.27 782.22 19.07
Confirmed in 1.18-pre1
Seed = 3327488709299075106
Co-ords = x: 1,883; z:45
Igloo spawned on edge of snow and plains biome on edge of mountain...
Confirmed in 1.18-pre2
Seed: -8814849657706892925
Coords: -1788 134 4949
Confirmed in 1.18 release
Seed: 4234567491579355864
Coords: -896 71 69
Can confirm in 1.18.2. MC-91084 - 1.18.2.png
Can confirm in 1.19. MC-91084 - 1.19.png
Can confirm in 1.19.2.
Not sure if this belongs here or in MC-238539, but I found this:
Confirmed in 1.21.3
Seed: -3390758632542633744
Coordinates: 7386, 75, 7216