Two sided foliage tree leafs are black

Hello.
I have a problem with my foliage tree leafs. As you can see in the photo the look almost completely dark from below, what should I do to prevent this?

Thanks!

Did you manage to fix this? Im looking at the same thing on my screen.

Cheers

Not really, but it should have been a problem with the tree models and materials as this didn’t happen on my new terrains. Good luck!