What happened?

Terrain blocks such as Nether Moss, Jungle Grass, Nether Mycelium, etc. are not generating in their respective biomes.
Examples:

BetterNether

9.0.9

BCLib

3.0.13

Fabric API

0.90.0

Fabric Loader

0.14.24

Minecraft

1.20.1

Relevant log output

No response

Other Mods

Architectury 9.1.12
Quilt Loader 0.21.2
Quilted Fabric API 7.4.0+0.90.0-1.20.1
TerraBlender 3.0.0.169
YUNG's Better Nether Fortresses 1.20-Fabric-2.0.5
(There's a ton more but these are the only ones I thought would be relevant)