I followed velicky's tutorial and I managed to generate LOD for trees some times but not now, my worldspace is named "test" and I have my data>textures>terrain>test>trees>testtreelod.dds but in my data>meshes>terrain>tets>trees folder I have only two files after generating tree lod (test.4.-52.60.BTT and test.LST) while in my worldspace I put about 7-8 trees.
In my previous worldspaces there were more files if there were more trees, I don't know if this could be the problem