mojira.dev
MC-32813

Floating water / lava above caves / cave carver doesn't update water

The bug

Caves (and mineshafts) are not always properly flooded. Instead the water just stops at some point in midair.

Note: Updating the block is always problematic and only updates one block of water instead of all!

How to reproduce

  • New example (1.14.3+):
    |Seed|6531545027671287273|
    |World type|Default|
    |Coordinates|/tp @s 170.45 58.00 -634.49 151.94 -50.55|

  • Old example: Seed: 780093002305051133

Related issues

MC-15494 Flying 'blocks' of water can be found MC-30922 Amplifed Floating Water MC-33268 Water not flowing MC-37156 Bug with generated water MC-39264 not flow water (not move the water block!) MC-45433 agua estática - Static water MC-51255 Bag whis generator MC-67768 Lava Ocean in Nether bug MC-80056 Water rendering bug MC-91548 Lava Doesn't Flow MC-110124 lava generation bug MC-130355 Caves (and mineshafts) below ocean ravines are not always properly flooded MC-152390 Water and lava doesn't flow out of walls but remains in the block. MC-153210 World Gen - Water Suspended In Cave MC-192112 Mistake (don't open) MC-192437 floating watert MC-194304 Water Bug Minecraft: Java 1.16.1 MC-196353 water generation bug with caves MC-197560 No water spilled MC-198737 world generating creates floating water MC-200996 water error MC-202234 Broken Submerged Cave generation MC-202792 Water Glitch MC-203490 glitched water MC-203728 Still water when generating a cave next to a river MC-203741 Amethyist cristal spawners spawns in ocean MC-204857 water doesn't flow into caves MC-206804 Auto-generated water does not fall MC-207368 Visual Bug, water MC-209648 Some world generated water blocks won’t flow/update MC-211292 The wierd water that don't flowing MC-217813 Water doesn't flow correctly MC-219245 Weird floating water generation MC-219484 The water does not flow MC-220739 Glitch with generating land MC-224197 Water was not flowing through 2 block empty space MC-225576 Bags in java MInecraft 21w19a MC-227229 Water won't flow MC-229011 Water source block refuses to flow due to world generation MC-229434 Floating water and floating sunflowers MC-232988 World Generation MC-234340 lava and wather chunk bug MC-237231 there is water area but it is not going on cave MC-239294 Cave spawning in Swamps creates un-updated water source blocks MC-241879 Mc water

Attachments

Comments

migrated
[media][media][media][media][media][media][media]
kumasasa

Confirmed.

Nathan Adams

Worldgen can be crazy.

Nope.

I would just like to point out that this can also happen with lava.

Andy (Romaq) Smith

[unrelated screenshot about MC-125106 removed]

Current snapshot 18w10a, seed 7719836812195502587 and I just teleported to a Stronghold to take a look around. -1545 35 -203 a water fountain isn't "fountaining". If generated "fountains" are not "fountaining", this could be a noticeable issue. Another fortress in the same world, same fountain, same issue.

[Mod] redstonehelper
j_p_smith

Confirmed in 1.16.1 and 20w27a using the seed and coordinates from MC-153210:

Seed: 4357639008311401092
/teleport @s 245 17 37 -43 -69
pulpetti

In 20w29a.

Arisa Bot

⚠️ Please do not mark Unreleased Versions as affected. You don't have access to them yet.

-- I am a bot. This action was performed automatically! Please report any issues in Discord or Reddit

Avoma

Can confirm in 20w51a, using the seed and coordinates provided by 
@unknown

Aidan Jarman

Happens in snapshot 21w10a as well.

Jon1337

I saw this happen with the new Lush Cave water pools in 20w10a I believe, unless it's a new bug

But if it isn't then this bug really should be more important to fix shouldn't it?

user-68c81

The issue with the old seed (780093002305051133) doesn't happen anymore because generation changed.

The issue with the seed 6531545027671287273 is a larger version of MC-132285. It is caused by caves intersecting with the swamp surface builder that places puddles.

The Lush Caves issue was fixed in an earlier snapshot.

The issue with the seed 4357639008311401092 is caused by intersecting caves and water caves, which is also reported in MC-223227. I suggest keeping it there, as it is a very specific problem.

 

I recommend only confirming this problem here if it doesn't match one of the issues above, to avoid duplicates. The original issue might already be fixed.

 

Brevort

Also occurs with strongholds, especially when the stronghold generates below y=10.

ampolive

Also note that this happens independently of chunk borders.

Ian Myers

migrated

Confirmed

Normal

World generation

cave, mineshaft, ravine, water, water-block

Minecraft 13w39a, Minecraft 1.7.1, Minecraft 1.7.2, Minecraft 18w21b, Minecraft 1.13-pre2, ..., 1.17 Pre-release 4, 1.17, 1.17.1, 21w41a, 1.18 Pre-release 1

1.18 Pre-release 2

Retrieved