single biome

hello,
The creation of unique biome like for example crooked forest, it creates a biome which does not correspond at all, only a few unique biomes work. It's been since version 1.18, problem that was not present on versions 1.17, it's been a while since this bug is not solved, in view of previous posts already reporting this bug. Is it planned to fix it or remove this feature which no longer works since version 1.18? THANKS.