[MC-239355] Badlands Mineshafts Can Spawn Above Land W/O Wooden Pillars

I was exploring a new world to test & observe performance and such and encountered this odd generation of a badlands mineshaft. From what I've seen, they're normally supposed to only spawn in caves and mountains, although this may be a feature I missed in the lengthy patch notes. Either way, it's an interesting discovery nonetheless. (Note: this might be a one-chunk glitch since I couldn't find it anywhere else in the world.) I also found some other possible world generation bugs that I'll report later.

Coords (X,Y,Z): -1286 ~ 1439

Seed: -1411227839636123349

Thanks, and have a wonderful day.

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Comments 8

user-f2760 2021-10-19T22:29:17Z

The lack of cave support is an intentionally added feature; they require non-air blocks above them in order to spawn. A check like that does not get added accidentally.

This has been the case since 16w20a, a 1.10 snapshot. I cannot provide the mojang.com changelog, as it redirects to the main page of minecraft.net nowadays.

Josh 2021-10-19T23:23:56Z

Thanks for this. I didn't follow the patch notes back in 1.10, so this is new information to me.

Avoma 2021-10-21T08:26:53Z

Duplicate of MC-140613, which was later resolved as "Works As Intended".

Josh 2021-10-21T21:13:26Z

This is completely different. Mine generated on land, not in a cave, while that one generated in a cave. This clearly doesn't work as intended.

user-f2760 2021-10-22T06:28:34Z

Except that I still see mineshaft sections in those screenshots completely above the surface and not connected to the underground...

Josh 2021-10-22T20:58:37Z

Those have wooden beams attached to parts of them though. The one that I encountered did not.

Harry Mlama 2021-11-21T20:15:46Z

Works as intended I think

SPGoding 2021-12-19T21:24:01Z

Other similar tickets (e.g. MC-243182) are resolved as duplicates of MC-140613 as well, so I think it's fine closing this one as a duplicate.