What's the issue you encountered?

They turn into saplings once I spawn into the world.

How can the issue be reproduced?

Mediterranean Forest was the location I found the bug.

Logs

No response

Mod Version

21.0.0.13

Additional information

No response

Are they all disappearing immediately, or just decaying one-by-one? I can't replicate it either way, so I'm assuming you have some mod that's improperly adding things to the vanilla logs tag and causing all leaves to start decaying.

aint quite sure but once spawned into the world cypress leaves is gone. Previous versions for 1.21 works well but now it seems to not be related with other mods.

Nothing has changed with Cypress Leaves since the initial 1.21 update, so it wouldn't really be possible for there to suddenly be an issue unless it's being caused by another mod. And again, I can't replicate this at all, so unless you can replicate it with ONLY Biomes O' Plenty/TerraBlender/GlitchCore installed and no other mods, I'm gonna chalk this up to being an issue with another mod.