I disabled some mods on FORGE and I think Optifines is somehow conflicting with terrain generation on BYG.

Bug: Every time I enter a BYG biome, there are no trees or plants. Just dirt. There isn't even a biome.

I expected there to be trees or plants in a biome that's supposed to be a jungle or a forest.

Here are some screenshots

I'm not sure how to provide any logs. I just play the game.

Use: https://paste.ee/ and paste the links. if log is huge please upload those
Please provide:
Crashlog -
Debug.log -
Latest.log -

Duplicate of #97 BYG & every other world generation mod in versions 1.16.2+ will break when Optifine shaders are active on forge. A workaround for this issue is to turn off shaders when loading your game/into a world and re-enable shaders AFTER entering your world.