The bug
Since the "Update that changed the world", mushroom island shore biome have not been generating properly around the edge of a mushroom biome.
How to reproduce
Seed: -640796280
Coordinates: /tp @s 29898.93 78.00 -8592.22 493.80 67.95
Linked issues
is duplicated by
relates to
Attachments
Comments
The enviroment is supposed to contain pc details
oh sry my bad 😞 dont think it will matter to this bug but ill go find them now (any chance of a template so me know what it is accertly u want )
just put down anything that relates to your pc enviroment
OS type/version
java version
drivers
etc
ok apart form the OS me copyed what it says in the f3 screen on minecraft me think thats every thing u asked for sry if its not
it's good now
Seed: 16
World creation version: 18w11a
Area: West

@unknown, please provide coordinates...
Another example:
Seed: 108301
Location: 1758 / 1029
Version: 18w11a
Confirmed for 1.13.1.
Confirmed in 1.16-pre5.Â
confirmed in 1.16-pre5 added a mp4 files showing mobs spawning in those grass_blocks
and a screenshot showing the grass_blocks within Minecraft:ocean biome instead of mushroom_field_shore.
seed : 1869945237501097058
coordinates : -2717 81 -3462

Confirmed in 1.16.1 on seed -350501890505856 near -323 85 -1315 in biome "mushroom_field_shore"
comfirmed for 1.16.3 (cant give seed dont know it on smp)Â
Can confirm in 20w49a using the provided seed and coordinates.
Can confirm in 21w03a.
Can confirm in 21w05b.
Can confirm in 21w07a.
Affects 1.17
Can confirm in 1.17.1.
its still a thing in 1.18 pre1
seed -5730231953357368694
cords 7269 68 -25
Can confirm in 1.19.
[media]Version: 1.19
Seed: -953538683905638291
Coordinates: /execute in minecraft:overworld run tp @s -808.79 73.86 1998.77 -409.87 45.17
Can confirm in 1.19.2.
Version: 1.19.2
Seed: -2178309719778189280
Coordinates: /execute in minecraft:overworld run tp @s -5792.10 69.25 -1546.76 -397.40 34.06

I suspect this may also be an issue on Bedrock since I've had monsters spawn on my Bedrock mushroom island too, but Bedrock doesn't have any way to view what biome I'm in so I can't prove it.

Is this also related to biome smoothing on the Y-axis?
Screenshot using MiniHUD to show ocean biome overlapping Mushroom Fields biome which allows monsters to spawn on a mooshroom island.
[media]its still a thing in 1.19.4
seed : -9175794540101132335
tp : /tp -1258 64 -4490
i am also having this problem. there are supposed to be 3 mushroom islands on my map on X box One. but all i can find are oceans there no mycelium
seed: -1120300048038858764