Title says it all
How to reproduce:
1. Create a single biome lush cave world
2. Locate a mineshaft
3. Notice how there is no moss or clay under the rails
This does not affect dripstone caves
Linked issues
relates to 2
Attachments
Comments 4
This behavior is present in 1.17.1 as well and isn't exclusive to the 1.18 snapshots. You can create a single biome lush caves world to reproduce this in 1.17.1.
[media]Version: 1.17.1
World Type: Single Biome, Lush Caves
Seed: 638482986749018703
Coordinates: /execute in minecraft:overworld run tp @s -283.37 35.00 146.07 -98.49 27.18
Might be a duplicate of MC-218676.