[Bug] "Couldn't load tag as it is missing reference" error in logs on start of world creation

[DefinitelyNotFred]

What happened?

As soon as I click "Create new world" in Minecraft, these errors show up in the log file.

BCLib

3.0.14

WorldWeaver

None

Fabric API

0.92.2+1.20.1

Fabric Loader

0.15.11

Minecraft

1.20.1

Relevant log output

[18:35:27] [Render thread/WARN]: [bclib] No Center Island Biomes found. Forcing use of vanilla center.
[18:35:27] [Render thread/WARN]: [bclib] No Center Island Biomes found. Forcing use of vanilla center.
[18:35:27] [Render thread/WARN]: [bclib] No Center Island Biomes found. Forcing use of vanilla center.
[18:35:27] [Render thread/WARN]: [bclib] No Center Island Biomes found. Forcing use of vanilla center.
[18:35:27] [Render thread/WARN]: [bclib] No valid BCLBiome Registry available!
[18:35:27] [Render thread/WARN]: [bclib] No valid Biome Registry available!
[18:35:29] [Worker-Main-2/ERROR]: Couldn't load tag c:mycelium as it is missing following references: #c:nether_mycelium (from fabric)
[18:35:29] [Worker-Main-2/ERROR]: Couldn't load tag c:nether_terrain as it is missing following references: #c:nether_mycelium (from fabric)
[18:35:29] [Worker-Main-2/ERROR]: Couldn't load tag c:terrain as it is missing following references: #c:mycelium (from fabric), #c:nether_terrain (from fabric)
[18:35:29] [Worker-Main-2/ERROR]: Couldn't load tag c:grass_soil as it is missing following references: #c:terrain (from fabric)
[18:35:29] [Worker-Main-2/ERROR]: Couldn't load tag c:workstation/fisherman as it is missing following references: #c:barrel (from fabric)
[18:35:29] [Worker-Main-2/ERROR]: Couldn't load tag minecraft:mineable/axe as it is missing following references: #c:wooden_chests (from fabric), #c:wooden_composter (from fabric), #c:workbench (from fabric)

Other Mods

No other mods and a freshly generated config folder.

[DefinitelyNotFred]

Full log file in case you want to see more context.