Mojira Archive
MCPE-8087

Air blocks connecting corridors to dirt rooms (mineshafts) spawn at the incorrect y-axis

Air pockets connecting corridors to the central (dirt) room of abandoned mineshafts and gold mines are spawned at the wrong y-axis (above and below, respectively). In some extreme cases, this can result in any tunnels being completely seperated from the central room by blocks.
When spawned in water bodies they will not update, allowing the player to easily locate them. Seeds showing this occurence are provided in the comment section.

Linked Issues

Attachments8

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rplatham

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rplatham

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Katten

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Katten

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Katten

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Comments14

What seed did you use? I'm interested to find this bug

They can occur in any seed. The images shown are using my test seed 'shroomzy' at different locations. I have yet to find a seed generating them near enough to the spawn to show it as an example.

I am sorry I can't reproduce this bug.

Alex, if you cannot reproduce it, then provide information on how you tested this bug, and on your device model and operating system. Please do not resolve issues without waiting for the community consensus, as others may be able to reproduce them on their devices.
I have reproduced this bug successfully using 0.9.5 & 0.10.4 on iPhone 6 plus (iOS 8.2), iPhone 4s (iOS 8.1.1), iPad Air (iOS 8.1.1), & iPad Mini (iOS 8.1.2).

Sorry about that. I'm on a Samsung Galaxy Note 3. Android 4.4.2. I cannot reproduce this bug currently in 0.10.5. It might have been fixed for 0.10.5 but 0.10.4 is currently for IOS devices.

Confirmed and reproducable on MCPE 0.10.5, android 4.4.2 seed: 1427324280 infinite creative.

How to find the air blocks in this seed:

When you spawn, do not turn. Fly perfectly straight in the direction you are facing until a bit past noon, maybe 3/4 of your first day following the "markers" below. How long it takes to get there depends on your device and your graphics setting. I'm on a Samsung Galaxy S4 with fancy graphics and max draw distance. You may need max draw distance to see all the markers I mention below.

You will go over the following "markers" in order:

  1. a village,
  2. some swamp biome, mostly on your right,
  3. a lot of open water
  4. about ten sandy islands (just past the islands you may notice two 1x1 air blocks close together submerged a few blocks under water on your right, but don't deviate from your path, there's more coming),
  5. more open water,
  6. an island on your left with some oak trees, and finally
  7. you will reach a forest biome (you'll see spruce trees for the first time).

As you go over the spruce forest, watch left for a sand island just off the left shoreline (see island.png). There are two sand islands close together, the one in the picture is the one you want. It is the second one, but you may see it first depending on the height you flew at because the first one may have been obscured by the spruce forest.

Fly over to the end of the island that is closest to the direction you were travelling and observe the water facing the direction you have been traveling. You will see two 2x1 air blocks and a 2x2 air block submerged a few blocks underwater. A bit deeper and abutting the end of the island, you will see another airblock including and some lava. (see airblocks.png and airblocks_circled.png).

From above water the submerged airblocks appear as lighter colored areas. From underwater they appear as darker colored areas.

If you prefer, just watch this really poor quality 5 minute boring youtube video I made of me following the instructions above. Before you ask, I filmed it with an external camera to keep MCPE vanilla.
The things I do for MoJIRA...

Thanks for the input, Russell. However, I have found a seed generating them relatively near to the spawn, as shown in the attached images. The air blocks are located directly beneath the glowstone spires. The seed is 1425694139

This issue relates to MC-954, which is fixed as of 1.8.1-pre4 in the PC edition.
For more information on the issue, see this comment by Markku.

Does this bug still appear in 0.13.0? If so please respond.

Confirmed to affect 0.13.0 on iPhone 6+ (iOS 9.1).

Confirmed on 0.15.1. (Tested on Windows 10.)

Reconfirmed on Samsung Galaxy S6 (SM-G920W8), Android 6.0.1 MCPE 0.15.90.2 using seed 1425694139.

I couldn't reproduce this with the seed given above.

If this still affects 0.16.0, could you please add seeds and coordinates of the places it affects (use /tp @p ~ ~ ~ to get coords)

History48

Daniel Wustenhoff

Confirmation Status: UnconfirmedConfirmed

AMAN4700
AMAN4700
AMAN4700

Deleted comment:

Reopen it if someone can reproduce this

rplatham

Added attachment: island.png

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rplatham

Added affects versions: 0.10.5

Katten

Added attachment:

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Katten

Added attachment: image.jpg

Changed description:

Small 2x3x3 air pockets spawn in ocean biomes in groups of three to five,. They are not uncommon, and their generation is consistent when using a set seed.
0I have only noticed their appearance when using the 'infinite' world type. Their occurence may be related to attempted cave spawning.

Small 2x3x3 air pockets spawn in ocean biomes in groups of three to five,. They are not uncommon, and their generation is consistent when using a set seed. I have only noticed their appearance when using the 'infinite' world type.
0Edit: Their occurence is related to mineshaft spawning, see MC-954 for more details. Shown is the result of digging directly below a set of air blocks.

Changed summary:
Air blocks spawn above mineshafts in water bodies

Katten
Katten

Added attachment:

Operating System Version

Changed description:

Small 2x3x3 air pockets spawn in ocean biomes in groups of three to five,. They are not uncommon, and their generation is consistent when using a set seed. I have only noticed their appearance when using the 'infinite' world type.
0Edit: Their occurence is related to mineshaft spawning, see MC-954 for more details. Shown is the result of digging directly below a set of air blocks.

Small air pockets (typically 2x3x3) spawn above the dirt (central) rooms of abandoned mineshafts. This is due to an incorrect y-axis spawn of the blocks; they should be spawning at the tunnle entrances to the dirt room.
0The pockets can spawn in water (oceans) and will not update, allowing the Player to easily locate them (and the mineshafts). Seeds showing this occurence are provided in the comment section.
0This issue may also occur with similarly gold mines, though this is yet untested. for more details. Shown is the result of digging directly below a set of air blocks.

Added labels: Mineshaft

Removed labels:

Changed summary:

Air blocks spawn above mineshafts in water bodies Blocks of air spawn above dirt rooms in abandoned mineshafts

Katten

Removed attachment: image.jpg

Katten

Added Assignee: tommo

Katten

Changed description:

Small air pockets (typically 2x3x3) spawn above the dirt (central) rooms of abandoned mineshafts. This is due to an incorrect y-axis spawn of the blocks; they should be spawning at the tunnle entrances to the dirt room.
0The pockets can spawn in water (oceans) and will not update, allowing the Player to easily locate them (and the mineshafts). Seeds showing this occurence are provided in the comment section.
0This issue may also occur with similarly gold mines, though this is yet untested.

Small air pockets (typically 2x3x3) spawn above the dirt (central) rooms of abandoned mineshafts. This is due to an incorrect y-axis spawn of the blocks; they should be spawning at the tunnle entrances to the dirt room.
0The pockets can spawn in water (oceans) and will not update, allowing the Player to easily locate them (and the mineshafts). Seeds showing this occurence are provided in the comment section.
0Edit: this also occurs similarly with gold mines, spawning below the tunnel entrances.

Added labels: GoldMine

Katten

Changed description:

Small air pockets (typically 2x3x3) spawn above the dirt (central) rooms of abandoned mineshafts. This is due to an incorrect y-axis spawn of the blocks; they should be spawning at the tunnle entrances to the dirt room.
0The pockets can spawn in water (oceans) and will not update, allowing the Player to easily locate them (and the mineshafts). Seeds showing this occurence are provided in the comment section.
0Edit: this also occurs similarly with gold mines, spawning below the tunnel entrances.

Air pockets connecting corridors to the dirt (central) room of abandoned mineshafts and gold mines are spawned at the wrong y-axis (above and below, respectively).
0When spawned in water bodies they will not update, allowing the Player to easily locate them. Seeds showing this occurence are provided in the comment section.0Edit: this also occurs similarly with gold mines, spawning below the tunnel entrances.

Added labels: Tunnel Corridor

Changed summary:

Blocks of air spawn above dirt rooms in abandoned mineshafts Air blocks connecting corridors to dirt rooms (mineshafts) spawn at the wrong y-axis

Katten

Removed attachment: image.jpg

Katten

Removed attachment: island.png

Katten

Added attachment:

Katten

Changed description:

Air pockets connecting corridors to the dirt (central) room of abandoned mineshafts and gold mines are spawned at the wrong y-axis (above and below, respectively). In some extreme cases, this can result in any tunnels being completely seperated from the dirt room by blocks.
0When spawned in water bodies they will not update, allowing the Player to easily locate them. Seeds showing this occurence are provided in the comment section.

Katten

Changed summary:

Air blocks connecting corridors to dirt rooms (mineshafts) spawn at the wrong y-axis Air blocks connecting corridors to dirt rooms (mineshafts) spawn at the incorrect y-axis

Katten

Changed summary:
Air blocks connecting corridors to dirt rooms (mineshafts) spawn at the incorrect y-axis level

Katten

Changed summary:
Air blocks connecting corridors to dirt rooms (mineshafts) spawn at the incorrect y-axis level

Katten

Assignee: tommo Daniel Wustenhoff

Katten

Added affects versions: 0.11.0 0.11.0 Beta 14

Katten

Changed description:

Air pockets connecting corridors to the dirt (central) room of abandoned mineshafts and gold mines are spawned at the wrong y-axis (above and below, respectively). In some extreme cases, this can result in any tunnels being completely seperated from the dirt room by blocks.
0When spawned in water bodies they will not update, allowing the Player to easily locate them. Seeds showing this occurence are provided in the comment section.

Air pockets connecting corridors to the central (dirt) room of abandoned mineshafts and gold mines are spawned at the wrong y-axis (above and below, respectively). In some extreme cases, this can result in any tunnels being completely seperated from the central room by blocks.
0When spawned in water bodies they will not update, allowing the player to easily locate them. Seeds showing this occurence are provided in the comment section.

Katten

Added affects versions: 0.11.1

Deleted account

Added labels: corridor mineshaft tunnel

Removed labels: Mineshaft Tunnel Corridor

HyperCamel

Added labels: awaiting_confirmation

AMAN4700
Katten

Added affects versions: 0.12.2 0.12.1 0.12.3

[Bot] Arisa
AMAN4700

Deleted comment:

Does this bug still appear in 0.12.2? If so please respond.

Katten
AMAN4700
Katten
Katten

Added affects versions: 0.13.0

Katten

Added affects versions: 0.14.0

Katten

Added affects versions: 0.14.1

[Mojang] Mega_Spud (Jay Wells)

Added affects versions: 0.15.1

rplatham

Added affects versions: 0.15.90.2

[Mojang] Mega_Spud (Jay Wells)
SunCat
[Mojang] Mega_Spud (Jay Wells)

Added labels: msbulkresolve

[Mojang] Mega_Spud (Jay Wells)
[Mojang] Mega_Spud (Jay Wells)
[Mojang] Mega_Spud (Jay Wells)

Removed labels: msbulkresolve

Cannot Reproduce
Katten
1
4
Confirmed
mineshaft
0.10.4 - 0.15.90.20.10.4 0.10.5 0.11.0 0.11.0 Beta 14 0.11.1 0.12.1 0.12.2 0.12.3 0.13.0 0.14.0 0.14.1 0.15.1 0.15.90.2