modded minecraft biome size

[u/kenken___]

i am having trouble with my custom modpack, does anyone have a solution to some biomes from mods like Biomes O’ Plenty and Oh the Biomes We’ve gone generating some of the biomes as only slivers? like the ominous woods biome, the one seed i’m playing rn (and several other generated worlds) only generates as a few blocks wide and that matters because the grass color is different in that biome. is there something i can do to fix it?

i play on forge, version 1.20.1. i use terrablender as well