T3D 1.1 Beta 2 - Terrain DetailMap Strangth Problem - RESOLVED

function TerrainMaterialDlg::onWake( %this )
{
   if( !isObject( ETerrainMaterialPersistMan ) )
      new PersistenceManager( ETerrainMaterialPersistMan );
      
   if( !isObject( TerrainMaterialDlgNewGroup ) )
      new SimGroup( TerrainMaterialDlgNewGroup );
   if( !isObject( TerrainMaterialDlgDeleteGroup ) )
      new SimGroup( TerrainMaterialDlgDeleteGroup );
      
   // Snapshot the materials.
   %this.snapshotMaterials();

   // Refresh the material list.
   %matLibTree = %this-->matLibTree;
   %matLibTree.clear();
   
   //%this.activeMat = 0; REMOVE THIS LINE
   %matLibTree.open( TerrainMaterialSet, false );  
   
   %matLibTree.buildVisibleTree( true );   
   %item = %matLibTree.getFirstRootItem();
   %matLibTree.expandItem( %item );
   
   %this.activateMaterialCtrls( true );      
}