Ive been trying to optimise some of the meshes that we have in our game, most of which being grass.
We have come across a strange problem where the LOD doesnt transition if the meshes were placed via the foliage brush but
if they were placed individually, the LOD works fine.
Before LOD transition (Left is foliage brush, right is single placed mesh)
After LOD transition (Left is foliage brush, right is single placed mesh)
As you can see the mesh on the right has changed materials and (as you cant see) the mesh has greatly reduced in vertices but the very same mesh applied to the level with the foliage brush has not transitioned. These 2 instances are the exact same, only difference was how they were applied to the world.
Any knowledge on fixing this issues is appreciated.