They appear in the creative menu, but aren't added to villager trades or structure loot. Using a variant of BCG (no cobblemon). However, I've tried other modpacks and had the same issue. I'm missing something, and I'm annoyed lol. Please lmk where I went wrong.
AttributeFix-Fabric-1.20.1-21.0.4.jar
AutochefsDelight-1.20.1-Fabric-1.0.6.jar
BCGUtil-mc1.20.1-v1.0.5-fabric.jar
BHMenu-Fabric-1.20.1-2.4.1.jar
BarteringStation-v8.0.0-1.20.1-Fabric.jar
BetterThirdPerson-Fabric-1.20-1.9.0.jar
BoatBreakFix-Universal-1.0.2.jar
Bookshelf-Fabric-1.20.1-20.2.13.jar
BuildingWands-mc1.20.1-2.6.9-release.jar
Chimes-v2.0.1-1.20.1-Fabric.jar
Clumps-fabric-1.20.1-12.0.0.4.jar
Cluttered-2.1.0-1.20.1[Fabric].jar
Controlling-fabric-1.20.1-12.0.2.jar
CustomCursor-comm-1.2.0-fabric.jar
DEUF_Refabricated-MC1.20.1-1.1.0.jar
DailyShop-mc1.20.1-v1.0.10-fabric (1).jar
DarkUtilities-Fabric-1.20.1-17.0.5.jar
Debugify-1.20.1+2.0.jar
DiagonalFences-v8.1.5-1.20.1-Fabric.jar
DiagonalWalls-v8.0.4-1.20.1-Fabric.jar
DiagonalWindows-v8.1.5-1.20.1-Fabric.jar
EasyAnvils-v8.0.2-1.20.1-Fabric.jar
EasyMagic-v8.0.1-1.20.1-Fabric.jar
EuphoriaPatcher-1.7.2-r5.6.1-fabric.jar
ExplorersCompass-1.20.1-2.2.3-fabric.jar
FarmersDelight-1.20.1-2.4.0+refabricated.jar
FarmersStructures-1.0.0-1.20_fabric.jar
ForgeConfigAPIPort-v8.0.2-1.20.1-Fabric.jar
GlitchCore-fabric-1.20.1-0.0.1.1.jar
GymBadges-1.0.jar
HorseExpert-v8.1.1-1.20.1-Fabric.jar
Icarus-Fabric-2.12.0.jar
IllagerInvasion-v8.0.7-1.20.1-Fabric.jar
ImmediatelyFast-Fabric-1.5.2+1.20.4.jar
Incendium_1.20.x_v5.3.5.jar
InventoryProfilesNext-fabric-1.20-1.10.19.jar
Item_Obliterator-MC1.20.1-Fabric_Quilt-2.3.0.jar
Jade-1.20-Fabric-11.13.1.jar
LeaveMyBarsAlone-v8.0.0-1.20.1-Fabric.jar
LeavesBeGone-v8.0.0-1.20.1-Fabric.jar
Log-Begone-Fabric-1.20.1-1.0.8.jar
MagnumTorch-v8.0.2-1.20.1-Fabric.jar
MouseTweaks-fabric-mc1.20-2.26.jar
NaturesCompass-1.20.1-2.2.3-fabric.jar
Necronomicon-Fabric-1.6.0+1.20.1.jar
Neruina-2.2.11-fabric+1.20.1.jar
NoChatReports-FABRIC-1.20.1-v2.2.2.jar
OverflowingBars-v8.0.1-1.20.1-Fabric.jar
Patchouli-1.20.1-84.1-FABRIC.jar
Pehkui-3.8.3+1.14.4-1.21.jar
PermanentSponges-v8.1.2-1.20.1-Fabric.jar
PigPen-Fabric-1.20.1-15.0.2.jar
Ping-Wheel-1.11.1-fabric-1.20.1.jar
PuzzlesLib-v8.1.33-1.20.1-Fabric.jar
Quest Kill Task-0.2.0+1.20.1-fabric.jar
ResourcePackOverrides-v8.0.3-1.20.1-Fabric.jar
Ribbits-1.20.1-Fabric-3.0.4.jar
Runelic-Fabric-1.20.1-18.0.2.jar
Searchables-fabric-1.20.1-1.0.3.jar
SellingBin-mc1.20.1-v1.0.9-fabric.jar
ServerRedirect-FabricMC20-1.4.5.jar
SimpleDiscordRichPresence-fabric-4.0.3-build.40+mc1.20.1.jar
Steam_Rails-1.6.9+fabric-mc1.20.1.jar
StorageDrawers-fabric-1.20.1-12.14.3.jar
StrawStatues-v8.0.3-1.20.1-Fabric.jar
Structory_1.20.x_v1.3.5.jar
Structory_Towers_1.20.x_v1.0.7.jar
StylishEffects-v8.0.2-1.20.1-Fabric.jar
Terralith_1.20.x_v2.5.4.jar
TradingPost-v8.0.2-1.20.1-Fabric.jar
VanitySlots-1.2.9.jar
VisualWorkbench-v8.0.1-1.20.1-Fabric.jar
YouShallNotSpawn-fabric-1.20.x-2.0.2.jar
YungsApi-1.20-Fabric-4.0.6.jar
YungsBetterDungeons-1.20-Fabric-4.0.4.jar
YungsBetterEndIsland-1.20-Fabric-2.0.6.jar
YungsBetterMineshafts-1.20-Fabric-4.0.4.jar
YungsBetterOceanMonuments-1.20-Fabric-3.0.4.jar
YungsBetterStrongholds-1.20-Fabric-4.0.3.jar
YungsExtras-1.20-Fabric-4.0.3.jar
alloy-forgery-2.1.2+1.20.jar
almostunified-fabric-1.20.1-0.10.1.jar
alternate-current-mc1.20-1.9.0.jar
amendments-1.20-2.2.3-fabric.jar
amwplushies-fabric-1.20.1-4.4.01.jar
another_furniture-fabric-1.20.1-3.0.1.jar
appleskin-fabric-mc1.20.1-2.5.1.jar
architectury-9.2.14-fabric.jar
artifacts-fabric-9.5.15.jar
athena-fabric-1.20.1-3.1.2.jar
authme-7.0.2+1.20.jar
automobility-0.4.2+1.20.1-fabric.jar
axolotl-item-fix-1.1.7.jar
balm-fabric-1.20.1-7.3.37.jar
bbb-fabric-2.0pre3.jar
bcg_smp-1.0.1.jar
bcgmusic-1.1.0-1.20.1.jar
bclib-3.0.14.jar
beautify-1.2.0+1.20.1.jar
beekeeperhut-fabric-mc1.20.1-2.0.1.jar
better-end-4.0.11.jar
better_climbing-fabric-3.jar
betterbeds-1.3.0-1.19.3.jar
betterend-crashed-ships-1.0.0.jar
bitsandchisels-2.7.3.jar
blahaj-fabric-1.20.0-0.3.2.jar
bwncr-fabric-1.20.1-3.17.2.jar
cardinal-components-api-5.2.3.jar
carryon-fabric-1.20.1-2.1.2.7.jar
cerulean-fabric-1.0.0-1.20.1.jar
charmofundying-fabric-6.5.0+1.20.1.jar
chefs-delight-1.0.3-fabric-1.20.1.jar
chipped-fabric-1.20.1-3.0.7.jar
chunkactivitytracker-fabric-1.0.1-1.20.1.jar
clickadv-fabric-1.20.1-3.8.jar
cloth-config-11.1.136-fabric.jar
comforts-fabric-6.4.0+1.20.1.jar
common-networking-fabric-1.0.5-1.20.1.jar
compact-storage-1.20.1-fabric-7.1.84.jar
connectivity-fabric-1.20.1-7.2.jar
convenientdecor-0.4.3.jar
copycats-2.2.2+mc.1.20.1-fabric.jar
coroutil-fabric-1.20.1-1.3.7.jar
crawl-0.12.0.jar
create-fabric-0.5.1-j-build.1631+mc1.20.1.jar
create_enchantment_industry-1.2.16.jar
createaddition-fabric+1.20.1-1.2.6.jar
createdeco-2.0.2-1.20.1-fabric.jar
creeperoverhaul-3.0.2-fabric.jar
crittersandcompanions-fabric-1.20.1-2.3.4.jar
cupboard-fabric-1.20.1-2.7.jar
despawntweaks-fabric-1.0.0-1.20.1.jar
dimensionalsyncfixes-fabric-1.20.1-0.0.2.jar
distraction_free_recipes-fabric-1.2.1-1.20.1.jar
does_it_tick-fabric-1.1.4-1.20.1.jar
dragonfight-fabric-1.20.1-4.7.jar
drippyloadingscreen_fabric_3.0.12_MC_1.20.1.jar
e4mc_minecraft-fabric-5.4.1.jar
elytraslot-fabric-6.4.4+1.20.1.jar
emi-1.1.22+1.20.1+fabric.jar
emi-letsdo-compat-1.8.jar
emotecraft-for-MC1.20.1-2.2.7-b.build.50-fabric.jar
enchantedeffects-0.2.0.jar
enchantedlib-0.3.11.jar
endermanoverhaul-fabric-1.20.1-1.0.4.jar
ends_delight-refabricated-1.20.1-2.5.jar
entity_model_features_1.20.1-fabric-3.0.1.jar
entity_texture_features_1.20.1-fabric-7.0.2.jar
entityculling-fabric-1.9.0-mc1.20.1.jar
everycomp-1.20-2.9.7-fabric.jar
expandeddelight-0.3.2.jar
exposure-1.20.1-1.7.16-fabric.jar
extendedgears-2.1.1-1.20.1-0.5.1.f-fabric.jar
extra_thicc_packets-1.0.jar
fabric-api-0.92.6+1.20.1.jar
fabric-end-remastered-5.2.4.jar
fabric-language-kotlin-1.13.6+kotlin.2.2.20.jar
fancymenu_fabric_3.7.0_MC_1.20.1.jar
farsight-fabric-1.20.1-4.5.jar
fast-ip-ping-v1.0.7-mc1.20.4-fabric.jar
fasterrandom-5.1.0.jar
fastpaintings-1.20-1.2.7-fabric.jar
ferritecore-6.0.1-fabric.jar
flowerymooblooms-fabric-mc1.20.1-2.0.2.jar
framework-fabric-1.20.1-0.6.16.jar
friendsandfoes-fabric-mc1.20.1-3.0.9.jar
ftb-chunks-fabric-2001.3.6.jar
ftb-essentials-fabric-2001.2.3.jar
ftb-library-fabric-2001.2.10.jar
ftb-quests-fabric-2001.4.14.jar
ftb-teams-fabric-2001.3.1.jar
ftb-ultimine-fabric-2001.1.7.jar
ftb-xmod-compat-fabric-2.1.3.jar
ftbquestsfreezefix-fabric-1.0.0-1.20.1.jar
fzzy_config-0.7.3+1.20.1.jar
geckolib-fabric-1.20.1-4.8.2.jar
getittogetherdrops-fabric-1.20-1.3.1.jar
globalpacks-fabric-1.20.1-19.3.6.jar
go-fish-1.6.3+1.20.1.jar
gpumemleakfix-fabric-1.20.1-1.8.jar
grind-enchantments-3.1.4+1.20.1.jar
hamsters-fabric-1.0.3-1.20.1.jar
handcrafted-fabric-1.20.1-3.0.6.jar
idwtialsimmoedm-0.3.1+1.20.jar
immersive_aircraft-1.4.0+1.20.1-fabric.jar
immersive_paintings-0.6.8+1.20.1-fabric.jar
indium-1.0.36+mc1.20.1.jar
iris-1.7.2+mc1.20.1.jar
iris-flywheel-compat-fabric1.20.1+1.1.2.jar
item-filters-fabric-2001.1.0-build.59.jar
itemcollectors-1.1.11-fabric-mc1.20.2.jar
jmi-fabric-1.20.1-0.14-48.jar
journeymap-1.20.1-5.10.3-fabric.jar
jumpoverfences-fabric-1.20.1-1.3.1.jar
justzoom_fabric_2.1.0_MC_1.20.1.jar
konkrete_fabric_1.8.1_MC_1.20.1.jar
kubejs-fabric-2001.6.5-build.16.jar
language-reload-1.7.4+1.20.1.jar
letsdo-API-fabric-1.2.15-fabric.jar
letsdo-bakery-fabric-1.1.15.jar
letsdo-brewery-fabric-1.1.9.jar
letsdo-candlelight-fabric-1.2.13.jar
letsdo-herbalbrews-fabric-1.0.12.jar
letsdo-vinery-fabric-1.4.41.jar
libIPN-fabric-1.20-4.0.2.jar
lithium-fabric-mc1.20.1-0.11.3.jar
lmft-1.1.1+1.21.9-fabric.jar
lootintegrations-fabric-1.20.1-4.7.jar.disabled
lootr-fabric-1.20-0.7.35.85.jar
man_of_many_planes-0.2.0+1.20.1-fabric.jar
mavapi-1.1.4-mc1.20.1.jar
mavm-1.2.6-mc1.20.1.jar
mcw-bridges-3.1.0-mc1.20.1fabric.jar
mcw-doors-1.1.2-mc1.20.1fabric.jar
mcw-fences-1.2.0-1.20.1fabric.jar
mcw-furniture-3.3.0-mc1.20.1fabric.jar
mcw-lights-1.1.2-mc1.20.1fabric.jar
mcw-mcwholidays-1.1.1-mc1.20.1fabric.jar
mcw-mcwpaths-1.1.1-mc1.20.1fabric.jar
mcw-mcwwindows-2.4.1-mc1.20.1fabric.jar
mcw-roofs-2.3.2-mc1.20.1fabric.jar
mcw-trapdoors-1.1.4-mc1.20.1fabric.jar
melody_fabric_1.0.4_MC_1.20.1-1.20.4.jar
mighty_mail-fabric-1.20.1-1.0.14.jar
mine-spawners-1.1.5.jar
mixintrace-1.1.1+1.17.jar
mobtimizations-fabric-1.20.1-1.0.0.jar
modelfix-1.15-fabric.jar
modernfix-fabric-5.24.4+mc1.20.1.jar
modmenu-7.2.2.jar
moonlight-1.20-2.16.14-fabric.jar
more-axolotl-2.0.1-1.20.jar
mss-1.2.7-1.20.jar
mvs-4.1.5-1.20.jar
mythicmetals-0.19.10+1.20.1.jar
naturalist-5.0pre5+fabric-1.20.1.jar
netherportalfix-fabric-1.20-13.0.1.jar
nightlights-fabric-1.20.1-1.1.jar
noisium-fabric-2.3.0+mc1.20-1.20.1.jar
notenoughanimations-fabric-1.10.4.1-mc1.20.1.jar
notenoughenchantments-0.3.0.jar
oceansdelight-fdrf-fabric-1.0.2-1.20.jar
owo-lib-0.11.2+1.20.jar
packetfixer-3.3.0-1.18-1.20.4-merged.jar
particle_core-0.2.6+1.20.1.jar
player-animation-lib-fabric-1.0.2-rc1+1.20.jar
plushies-1.4.0-fabric.jar
polymorph-fabric-0.49.10+1.20.1.jar
reacharound+1.20-1.3.1.jar
recipeessentials-fabric-1.20.1-4.1.jar
redirected-fabric-1.0.0-1.20.1.jar
resourcefulconfig-fabric-1.20.1-2.1.3.jar
resourcefullib-fabric-1.20.1-2.1.29.jar
rhino-fabric-2001.2.3-build.10.jar
shader-toggle-1.0.jar
simplehats-fabric-1.20.1-0.3.2.jar
simplyswords-1.56.0-1.20.1.jar
sliceanddice-fabric-3.3.1.jar
smallships-fabric-1.20.1-2.0.0-b1.4.jar
sodium-extra-0.5.9+mc1.20.1.jar
sodium-fabric-0.5.11+mc1.20.1.jar
somanyenchantments-0.4.1.jar
spark-1.10.53-fabric.jar
sparsestructures-fabric-1.20.1-3.0.jar
spiceoffabric-1.6.2+mc1.20.1.jar
stacc-1.7.0.jar
structure_layout_optimizer-fabric-1.0.10.jar
structureessentials-fabric-1.20.1-4.8.jar
supermartijn642configlib-1.1.8a-fabric-mc1.20.jar
supermartijn642corelib-1.1.18a-fabric-mc1.20.1.jar
supplementaries-1.20-3.1.40-fabric.jar
suppsquared-1.20-1.1.23-fabric.jar
things-0.3.3+1.20.jar
toms_storage_fabric-1.20-1.7.1.jar
trade-cycling-fabric-1.20.1-1.0.7.jar
trashcans-1.0.18-fabric-mc1.20.jar
travelersbackpack-fabric-1.20.1-9.1.41.jar
trinkets-3.7.2.jar
txnilib-fabric-1.0.24-1.20.1.jar
ubesdelight-fabric-1.20.1-0.4.3.jar
universal_shops-1.3.2+1.20.1.jar
variantsandventures-fabric-mc1.20.1-1.0.6.jar
villagesandpillages-fabric-mc1.20.1-1.0.2.jar
voicechat-fabric-1.20.1-2.5.35.jar
watut-fabric-1.20.1-1.2.3.jar
wraith-waystones-3.3.3+mc1.20.1.jar
xercamusic-fabric-1.20.1-1.0.2.jar
xercapaint-fabric-1.20.1-1.0.1.jar
yet_another_config_lib_v3-3.6.6+1.20.1-fabric.jar
youre-in-grave-danger-fabric-2.0.16.jar
by OnTheRivir