Foliage Layer displaying default material

[Cuplacakes]

Is anyone able to tell me what is causing this to happen?

The meshes show up fine in editor, it's only when I boot up the game that this happens. I have around 5/6 foliage layers.

[Adrenen]

Try saving / fully load package the material is in .

[fighter5347]

Is your problem that the materials doesnt show up, or the strange default materials on the right side of the picture?