LOD materials are wrong for multiple tree static meshes in Kitedemo

A lot of the tree meshes become big and blocky at the furthest LOD level. This causes them to look odd when they are far away in the distance.

This is a regression from 4.13.2

1. Open kitedemo in the editor
2. Open the BirchForest_01 static mesh
3. Change the LOD to LOD Level 2

Result: Mesh becomes a big blocky object due to the wrong material being applied in LOD2