[MC-160169] Woodland mansion mushroom room is missing mushrooms

How to reproduce

Locate a mushroom room, either by finding one naturally generated:

/locate structure minecraft:mansion

Or by spawning one in directly:

/setblock ~ ~ ~ structure_block{mode:"LOAD", name:"woodland_mansion/1x2_a7"}

→ ❌ Note that no mushrooms spawn.

Linked issues

is duplicated by 1

MC-193946 1x2_a7 in Woodland Mansions not generating mushrooms Resolved

relates to 2

MC-264872 Woodland Mansion wheat farm room sometimes generates without wheat Open

MC-213695 Structure blocks fail to place mushrooms when the only thing blocking direct sunlight is other blocks placed by the structure block Open

Attachments

MC-160169.mp4

Comments 28

Avoma 2020-12-04T18:30:15Z

Can confirm in 20w49a. Absolutely no mushrooms are generated here.

Avoma 2021-01-17T11:02:16Z

Can confirm in 20w51a.

Avoma 2021-02-17T15:57:38Z

Can confirm in 21w06a using the provided seed & coordinates.

SeanWasTaken 2021-05-03T19:12:51Z

Is probably caused by MC-213695

ampolive 2021-07-18T18:02:44Z

Can confirm in 1.17.1.

18 more comments

windwend 2023-06-12T07:01:29Z

Loaded up a world in 1.20, and somehow the mushrooms are present.
Seed: 611
Location: 274 67 412

sh20000sh 2023-06-17T05:42:49Z

I saw an another room that mushrooms are present in 1.20.1 besides already mentioned case. And I tried to generate it with structure block, and it had mushrooms. It dropped as item immediately tho - this might be brightness issue I think.

user-f2760 2023-06-17T05:52:06Z

It is, order may have changed slightly in 1.20 so that the mushrooms are in darkness before their brightness check, rather than checking immedietly when placing the structure block by block.

Klinbee 2023-07-18T03:35:02Z

~~Also tested in 1.20.1 and two mansions I went to had the room and generated with them.~~

EDIT: It may have been a mod that was fixing it....

Minecraft386882 2024-11-18T02:21:44Z

Confirmed in 1.21.3