Am using:
Dreamland-forge-1.19.2-1.1.1
geckolib-forge-1.19-3.1.16
BiomesOPlenty-1.19.2-17.1.1.150
TerraBlender-forge-1.19.2-2.0.1.125
Terralith_v2.3.3
forge-1.19.2-43.0.19-installer

The mod is working, but the biomes are not showing on the biomes list. Would have thought BoP and Dreamlands would work together fine as they both use TerraBlender. I looked in the configs for all these mods, but nothing there seems relevant. Am i missing something blindingly obvious ?

I tried replicating this myself and couldn't seem to recreate the issue. /locate biome dreamland:hive should work.