[MCPE-8087] Air blocks connecting corridors to dirt rooms (mineshafts) spawn at the incorrect y-axis Created: 20/Mar/15  Updated: 26/Sep/18  Resolved: 26/Sep/18

Status: Resolved
Project: Minecraft (Bedrock codebase)
Component/s: None
Affects Version/s: 0.10.4, 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
Fix Version/s: None

Type: Bug
Reporter: Katten
Resolution: Cannot Reproduce Votes: 1
Labels: mineshaft

Attachments: PNG File airblocks.png     PNG File airblocks_circled.png     JPEG File image.jpg     JPEG File image.jpg     JPEG File image.jpg     JPEG File image.jpg     JPEG File image.jpg     JPEG File image.jpg    
Issue Links:
Duplicate
is duplicated by MCPE-11516 Random air "pockets" found in the ocean Resolved
Relates
relates to MC-954 Air Blocks floating in Water Resolved
Confirmation Status: Confirmed
Platform: Phone - iOS - iPhone 6 Plus
CHK:

 Description   

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.



 Comments   
Comment by [Mojang] Mega_Spud (Jay Wells) [ 04/Nov/16 ]

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)

Comment by rplatham [ 13/Sep/16 ]

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

Comment by Zeb [ 28/Jun/16 ]

Confirmed on 0.15.1. (Tested on Windows 10.)

Comment by Katten [ 01/Dec/15 ]

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

Comment by AMAN4700 [ 30/Nov/15 ]

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

Comment by Katten [ 09/Apr/15 ]

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 bugi74.

Comment by Katten [ 26/Mar/15 ]

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

Comment by rplatham [ 26/Mar/15 ]

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...

Comment by rplatham [ 25/Mar/15 ]

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.

Comment by AMAN4700 [ 21/Mar/15 ]

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.

Comment by Katten [ 21/Mar/15 ]

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).

Comment by AMAN4700 [ 20/Mar/15 ]

I am sorry I can't reproduce this bug.

Comment by Katten [ 20/Mar/15 ]

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.

Comment by AMAN4700 [ 20/Mar/15 ]

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

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