[MC-190480] Lava within basalt deltas biomes doesn't update correctly when intersecting nether fortresses

The Bug:

Lava within basalt deltas biomes doesn't update correctly when intersecting nether fortresses.

Here is an example:

Version: 1.21.4

Seed: -2178309719778189280
Coordinates: /execute in minecraft:the_nether run tp @s 109525.65 56.89 -227.80 -717.34 -29.81

Steps to Reproduce:

Generate a world with the seed provided above and teleport to the given coordinates.
Look at the generation of lava and how it intersects with the nether fortress.
Take note as to whether or not lava within basalt deltas biomes doesn't update correctly when intersecting nether fortresses.

Observed Behavior:

Lava within basalt deltas biomes doesn't update correctly.

Expected Behavior:

Lava within basalt deltas biomes would update correctly.

Linked issues

is duplicated by

MC-198032 Lava not flowing

MC-227630 Nether fortress generation in basalt deltas bug

MC-258384 Lava or water stops flowing into a structure

MC-296994 Frozen lava in the nether

MC-179291 Nether Fortresses In Basalt Deltas Cut Off Lava

MC-193671 lava bug in Nether

Attachments

Comments

violine1101 2020-06-19T08:02:59Z

Could you please provide seed and coordinates?

migrated 2020-07-06T11:51:43Z

Reporter, please give coordinates and seed

muzikbike 2020-07-08T21:40:10Z

[media]

I've found an instance of this myself.

muzikbike 2020-07-08T21:43:34Z

Suggested fix (please add to main text): when generating bridge structures, if the fortress detects any non-air blocks bordering the 3x3 tunnel of air that generates as part of the bridges, these adjacent blocks should be replaced with nether bricks. This fixes this bug along with softening the ugly and awkward netherrack roofs you tend to get with fortresses.

migrated 2020-07-28T02:21:38Z

Confirmed for 20w30a.

Avoma 2020-12-18T14:06:08Z

Can confirm in 20w51a.

Avoma 2021-05-11T12:43:55Z

Can confirm in 1.16.5 and 21w18a.

ampolive 2021-07-11T13:22:10Z

Can confirm in 1.17.1.

Avoma 2022-04-25T08:49:26Z

Can confirm in 1.18.2 and 22w16b. Relates to MC-231712.

Version: 1.18.2

Seed: -6901966002481662265
Coordinates: /execute in minecraft:the_nether run tp @s 28801.46 60.00 -1055.21 -1073.09 -9.68

[media]

Avoma 2022-07-03T11:06:25Z

Can confirm in 1.19.

Avoma 2022-09-17T10:07:25Z

Can confirm in 1.19.2.

Version: 1.19.2

Seed: -2178309719778189280
Coordinates: /execute in minecraft:the_nether run tp @s 109525.65 56.89 -227.80 -717.34 -29.81

Some_One_YT 2022-12-08T19:44:17Z

i have found this as well, reported it and l then i was lead here

i will post seed and cords later today

Brain81505 2023-01-21T14:26:16Z

Can confirm in 23w03a
Seed: 8587948038190963789
XYZ: -1235 67 4998
World type: Default
Image:

[media]

migrated 2023-10-28T17:56:17Z

In 23w43b

migrated 2024-02-02T16:37:33Z

In 1.20.4 and 24w05b