Procedural Foliage, shade radius not working correctly?

Hello, using the procedural foliage tool I have some trees with shade, and glowey mushrooms that only grow in the shade around the trees.

Then I spawned logs with a shade radius of 0, but the glowey mushrooms are still spawning all around the logs, even though they have no shade.

Is this a bug? I just want the mushrooms to spawn around the trees only (in their shade), and have logs randomly spawn on their own. How can I set this up?

Thanks

Bump. Having the same issue

Collision Radius is for the Trunk, Shade if for the Leaves
You have Coll 100 and Shade 0
If you want to spawn something in Shade, Shade must be heigher then Collision
Tree_Radius