I think I’ve reported this one quite a long ago. Basically the issue was that whenever meshes had a translucent foliage material, which had any part of its base color completely black (RGB 000), it would not be black but it’d glow bright green instead. I had to work around it by putting clamp nodes in all our foliage materials and offsetting the base color from the bottom to get rid of 100% black areas.
It should not be too difficult to figure out of it’s a same bug. Just check if the base color textures has some pitch black spots in it 