[MC-81467] Parts of structures replaced by lava lakes

The bug

When you create a normal world (in 1.8.7) with this seed and get to these coordinates, you will see that there is a desert temple with a water lake on the one side in it. I assume that the desert temple made (by filling the blocks below it with sandstone) the spot valid for lakes. However like this it makes no sense because normally structures like temples, villages, strongholds, dungeons and mine shafts become generated after the terrain.

Seed:
7970370520536666030

Position:
/tp -200 64 124 -77 -3

It seems like the game generates the temples before the sand which gets generated before lakes.

Example seeds

Note: Please keep in mind that generation of lakes is dependent on the order in which you load chunks and might also change during versions.
If you cannot reproduce this bug using the following seeds, please try to locate a few structures (can be seen best with mansions) and see if you find lakes which generated inside of them.

Last updated for 21w40a

Seed: 6176757522236561139

/execute in minecraft:overworld run tp @s -1998.58 106.50 -2067.61 -117.60 55.50

Last updated for 20w07a

Seed: 7970370520536666030
Teleport first to

/tp -12384 ~ 91696

And then to (where the lake should be) to load the chunks in the correct order

/execute in minecraft:overworld run tp @s -12375.31 65.56 91658.74 17.40 38.85

Seed: 7970370520536666030

/execute in minecraft:overworld run tp @s -3066.46 70.22 234550.07 209.70 53.25

Seed: 4223008913981951312

/execute in minecraft:overworld run tp @s 1973.97 65.37 746.64 497.40 46.35

Linked issues

is duplicated by 17

MC-72439 Half/Cutted doors generate in Strongholds Resolved

MC-119154 Woodland Mansion Spawning on lava pits Resolved

MC-132687 Water lakes are destroying villages Resolved

MC-133291 Half a building created with a half door Resolved

MC-140614 water can fill an enclosure in a village Resolved

12 more links

relates to 3

MC-610 Grass / Flowers / Snow are placed incorrectly in newly created chunks Resolved

MC-125004 Lakes generate through village Resolved

MC-127709 Igloos can generate in FrozenRiver biomes, where the cellar is missing Resolved

Attachments

Desert temple destroyed chests (1.9.2).png

Desert Temple Structure order (1.8.7).png

Comments 50

Dlawso the Really Lucky Rabbit 2015-06-16T20:32:24Z

Dupe of MC-7294

kumasasa 2015-06-16T20:52:29Z

This is caused by water erosion. The temple is way older than the lake.

marcono1234 2015-06-16T21:27:07Z

You are right, it was a long time ago when Egyptians built their pyramids...

kumasasa 2015-06-17T20:27:06Z

Confirmed.
_{But the temple is looking way more interesting...}

Dylan 2016-09-30T21:25:09Z

Confirmed in 1.10.2 & 16w39c

40 more comments

Dylan 2016-10-06T15:11:48Z

Confirmed in 16w40a

Klorkson Noksu 2016-10-13T15:15:23Z

Can confirm for 16w41a

Dylan 2016-10-19T18:23:35Z

Confirmed in 16w42a

Dylan 2016-10-27T18:58:07Z

Confirmed in 16w43a

Dylan 2016-11-03T20:36:37Z

Confirmed in 16w44a

Dylan 2016-11-08T21:55:41Z

Confirmed in 1.11-pre1

Dylan 2016-11-14T22:25:33Z

Confirmed in 1.11

Dylan 2016-12-17T09:27:36Z

Confirmed in 16w50a

Dylan 2016-12-23T19:22:10Z

Confirmed in 1.11.2

1kadse 2018-08-02T01:01:39Z

In 18w31a snapshot I found an issue like this in a Woodland Mansion which is located on a lake.

Steps to reproduce:

Create a new creative world with seed: -5599346328227561486
/tp @p -13707 65 2809 50 15
Floor misses wood blocks, some of them should have carpet on them

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Kraif 2018-08-27T13:56:32Z

Confirmed for 1.13.1.

user-57e18 2018-12-06T00:22:00Z

I've heard that the reason this happens is because the water and lava lakes generate last, even after structures, which is just stupid.

gaspoweredpick 2019-04-04T19:24:55Z

Confirmed for 19w14a for pillager outposts.

gaspoweredpick 2019-12-11T04:17:59Z

Confirmed for mansions in 1.15. Use the seed -598042918476130 and there is a lava lake in a mansion at -380 63 -1040. The mansion obviously burns down right away.

Misode 2020-02-16T00:17:09Z

Cannot reproduce in 20w07a. None of the seeds and coordinates work, sometimes because there isn't even a structure.

marcono1234 2020-02-16T23:15:39Z

Was able to confirm this at least for mansions and updated the seeds and coordinates.

TheGabro 2020-05-08T20:07:30Z

can confirm 20w19a

pulpetti 2020-07-16T19:43:56Z

In 1.16.1 and 20w29a

Dmitry Konev 2020-08-02T15:02:25Z

Lakes probably shouldn't generate last, should they...

Richard Felder 2020-10-27T15:09:04Z

Confirmed 1.16.2

Avoma 2020-12-28T16:02:52Z

Can confirm in 20w51a. Here's an extra seed along with coordinates which demonstrates how lakes can generate inside of woodland mansions.

Seed: -6549889454106593879
Coordinates: /tp @p -4940 69 -6042 190 45

Avoma 2021-01-23T11:59:54Z

Can confirm in 21w03a.

Avoma 2021-02-04T14:31:08Z

Can confirm in 21w05a.

Avoma 2021-02-06T15:46:36Z

Can confirm in 21w05b.

Boas Bakker 2021-02-24T20:54:26Z

Can confirm in 21w08a. Also, this can also break the top 4 layers of bedrock, not the last one.

Avoma 2021-03-29T14:16:27Z

Can confirm in 21w11a.

user-68c81 2021-04-07T15:58:52Z

A lot of issues like this one, MC-610 and MC-199555 happen because water lakes generate too late. Along with geodes, they're the only features that generate air pockets, so they should be placed pretty early in the generation, before structures and the other features.

Avoma 2021-04-19T09:39:11Z

Can confirm in 21w15a.

Brevort 2021-05-07T19:52:33Z

Frequently happens on chunk boundaries in mineshafts causing 1- or 2-wide tunnels.

Avoma 2021-06-28T17:00:40Z

Can confirm in 1.17.

ampolive 2021-08-13T17:53:12Z

Can confirm in 1.17.1.

clamlol 2021-10-07T21:59:59Z

Affects 21w40a.

Seed: 6176757522236561139
Coords: -2000 ~ -2070

ampolive 2021-10-09T13:52:07Z

This also affects rivers and aquifers.

marcono1234 2021-10-12T01:10:56Z

@@unknown, could you please create a separate report for that? Because the changes to rivers and aquifers are still relatively new, it is (probably) unlikely that this is the same underlying issue. Please refer to this report so that we can link the reports.
We can still merge the reports in the future if necessary.

ampolive 2021-10-12T12:56:50Z

I have done so: MC-238817.

ampolive 2021-10-12T13:06:13Z

After testing, it seems that I was mistaken. The house is not partly replaced by the river, it just generates over it (MC-214795). I was under the impression that it was broken or replaced, but upon inspecting it seems that desert_cartographer_house_1 is just missing part of its floor. I created a separate report for this latter issue because I couldn't find a ticket for that: MC-238819.

Avoma 2021-12-08T13:07:43Z

Can confirm in 1.18.

pulpetti 2022-04-01T18:50:40Z

In 22w13a.

pulpetti 2022-04-06T17:35:05Z

In 22w14a.

Brain81505 2023-08-05T09:35:10Z

Can confirm in 23w31a

Seed: 6984479431695682360
World type: Default
XYZ: Overworld /tp @s -158 69 4717
Screenshot:

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