Lush caves features don't generate on aquifers or underwater areas
Lush caves blocks / vegetation like moss, clay and dripleaf don't seem to generate on aquifers (or underwater areas in general). Some clay patches do generate, but those don't need adjacent air and can generate buried in caves.
Entire caves generated as aquifers might generate without any lush caves features. Sometimes you might find moss patches, but because there's a dry cave below the aquifer, which generates moss on the ceiling.
Observed result
In this case, lush caves features don't generate probably because the biome only decorates on exposed blocks, but doesn't check for water. This is not the case with dripstone caves (See MC-221748).
Expected result
Lush caves underwater would generate moss, clay, and dripleaf (as they can be waterlogged) consistently like how they generate in dry caves, replacing most of the stone.
How to reproduce
- Generate a single biome world of lush caves.
- Find an aquifer, the larger the better.
Notice how most of the terrain underwater is devoid of lush blocks.
Created Issue:
Lush caves blocks & plants barely generate / don't generate on aquifers
Lush caves blocks and plants, like moss and dripleaf, don't seem to generate on aquifers. Clay patches do generate, but those don't need adjacent air, which is why can generate buried too.
In this case, lush caves blocks don't generate probably because doesn't check for water.The expected would be, to generate moss, clay, and dripleaf consistently like how they generate in dry caves, replacing most of the stone.
How to reproduce
- Generate a single biome world of lush caves, with the C&C datapack.
- Find an aquifer, the larger the better.
Notice how most of the terrain underwater is devoid of blocks / flora.
Lush caves blocks and plants, like moss and dripleaf, don't seem to generate on aquifers. Clay patches do generate, but those don't need adjacent air, which is why can generate buried too.
In this case, lush caves blocks don't generate probably because doesn't check for water.The expected would be, to generate moss, clay, and dripleaf consistently like how they generate in dry caves, replacing most of the stone.
How to reproduce
- Generate a single biome world of lush caves, with the C&C datapack.
- Find an aquifer, the larger the better.
Notice how most of the terrain underwater is devoid of blocks /
flora.Lush caves blocks / plants, like moss and dripleaf, don't seem to generate on aquifers. Clay patches do generate, but those don't need adjacent air, which is why can generate buried in caves too. Sometimes you might find moss patches, but that's because there's a dry cave below the aquifer, which generates moss on the ceiling.
Observed result
In this case, lush caves blocks don't generate probably because the biome only decorates on exposed blocks, but doesn't check for water.
Expected result
The expected would be, to generate moss, clay, and dripleaf consistently like how they generate in dry caves, replacing most of the stone.
How to reproduce
- Generate a single biome world of lush caves, with the C&C datapack.
- Find an aquifer, the larger the better.
Notice how most of the terrain underwater is devoid of lush blocks / plants.
Lush caves blocks / plants, like moss and dripleaf, don't seem to generate on aquifers. Clay patches do generate, but those don't need adjacent air, which is why can generate buried in caves too. Sometimes you might find moss patches, but that's because there's a dry cave below the aquifer, which generates moss on the ceiling.
Observed result
In this case, lush caves blocks don't generate probably because the biome only decorates on exposed blocks, but doesn't check for water.
Expected result
The expected would be, to generate moss, clay, and dripleaf consistently like how they generate in dry caves, replacing most of the stone.
How to reproduce
- Generate a single biome world of lush caves
, with the C&C datapack.- Find an aquifer, the larger the better.
Notice how most of the terrain underwater is devoid of lush blocks / plants.
Lush caves blocks /
plants,like moss and dripleaf,don't seem to generate on aquifers. Clay patches do generate, but those don't need adjacent air, which is why can generate buried in cavestoo. Sometimes you might find moss patches, but that's because there's a dry cave below the aquifer, which generates moss on the ceiling.Observed result
In this case, lush caves
blocks don't generate probably because the biome only decorates on exposed blocks, but doesn't check for water.Expected result
The expected would be, to generate moss, clay, and dripleaf consistently like how they generate in dry caves, replacing most of the stone.
How to reproduce
- Generate a single biome world of lush caves.
- Find an aquifer, the larger the better.
Notice how most of the terrain underwater is devoid of
lush blocks / plants.Lush caves blocks / vegetation like moss and dripleaf don't seem to generate on aquifers (or water in general). Clay patches do generate, but those don't need adjacent air, which is why they can generate buried in caves. Sometimes you might find moss patches, but that's because there's a dry cave below the aquifer, which generates moss on the ceiling.
Observed result
In this case, lush caves features don't generate probably because the biome only decorates on exposed blocks, but doesn't check for water. This is not the case with dripstone caves.
Expected result
The expected would be, to generate moss, clay, and dripleaf (as they can be waterlogged) consistently like how they generate in dry caves, replacing most of the stone.
How to reproduce
- Generate a single biome world of lush caves.
- Find an aquifer, the larger the better.
Notice how most of the terrain underwater is devoid of moss, clay and dripleafs.
Lush cavesblocks & plants barely generate /don't generate on aquifersLush caves features don't generate on aquifers / water
Lush caves blocks / vegetation like moss and dripleaf don't seem to generate on aquifers (or water in general).
Clay patches do generate, but those don't need adjacent air, which is why theycan generate buried in caves. Sometimes you might find moss patches, but that's because there's a dry cave below the aquifer, which generates moss on the ceiling.Observed result
In this case, lush caves features don't generate probably because the biome only decorates on exposed blocks, but doesn't check for water. This is not the case with dripstone caves.
Expected result
The expectedwouldbe, togenerate moss, clay, and dripleaf (as they can be waterlogged) consistently like how they generate in dry caves, replacing most of the stone.How to reproduce
- Generate a single biome world of lush caves.
- Find an aquifer, the larger the better.
Notice how most of the terrain underwater is devoid of moss, clay and dripleafs.
Lush caves blocks / vegetation like moss, clay and dripleaf don't seem to generate on aquifers (or underwater areas in general). Some clay patches do generate, but those don't need adjacent air and can generate buried in caves. Sometimes you might find moss patches, but that's because there's a dry cave below the aquifer, which generates moss on the ceiling.
Observed result
In this case, lush caves features don't generate probably because the biome only decorates on exposed blocks, but doesn't check for water. This is not the case with dripstone caves.
Expected result
Lush caves underwater would generate moss, clay, and dripleaf (as they can be waterlogged) consistently like how they generate in dry caves, replacing most of the stone.
How to reproduce
- Generate a single biome world of lush caves.
- Find an aquifer, the larger the better.
Notice how most of the terrain underwater is devoid of moss, clay and dripleafs.
Lush caves features don't generate on aquifers/ waterLush caves features don't generate on aquifers or underwater areas
Lush caves blocks / vegetation like moss, clay and dripleaf don't seem to generate on aquifers (or underwater areas in general). Some clay patches do generate, but those don't need adjacent air and can generate buried in caves.
Sometimes you might find moss patches, but that's because there's a dry cave below the aquifer, which generates moss on the ceiling.Observed result
In this case, lush caves features don't generate probably because the biome only decorates on exposed blocks, but doesn't check for water. This is not the case with dripstone caves.
Expected result
Lush caves underwater would generate moss, clay, and dripleaf (as they can be waterlogged) consistently like how they generate in dry caves, replacing most of the stone.
How to reproduce
- Generate a single biome world of lush caves.
- Find an aquifer, the larger the better.
Notice how most of the terrain underwater is devoid of
moss, clay and dripleafs.Lush caves blocks / vegetation like moss, clay and dripleaf don't seem to generate on aquifers (or underwater areas in general). Some clay patches do generate, but those don't need adjacent air and can generate buried in caves.
Entire caves generated as aquifers might generate without any lush caves features. Sometimes you might find moss patches, but because there's a dry cave below the aquifer, which generates moss on the ceiling.
Observed result
In this case, lush caves features don't generate probably because the biome only decorates on exposed blocks, but doesn't check for water. This is not the case with dripstone caves (See
MC-221748).Expected result
Lush caves underwater would generate moss, clay, and dripleaf (as they can be waterlogged) consistently like how they generate in dry caves, replacing most of the stone.
How to reproduce
- Generate a single biome world of lush caves.
- Find an aquifer, the larger the better.
Notice how most of the terrain underwater is devoid of lush blocks.
Personally, I don't see anything wrong with that. Moss does not generated underwater (MC-235477), but it is the ceiling of a lush cave below. Plus it works the same way in Java.






I can confirm that this is an issue.
Can confirm in 21w42a
Moss does but that is probably intended