skip if elevation or units null (#446)

speckle_connector_3/src/convertors/to_native_v2.rb

@@ -530,6 +530,8 @@ module SpeckleConnector3
           units = level_data_object['units']
           elevation_raw = level_data_object['elevation']
 
+          next if elevation_raw.nil? || units.nil?
+
           is_exist = @entities_to_fill.grep(Sketchup::SectionPlane).any? { |sp| sp.name == name }
           next if is_exist
 

speckle_connector_3/src/sketchup_model/utils/view_utils.rb

@@ -25,7 +25,11 @@ module SpeckleConnector3
             sketchup_model.selection.add(entity)
           end
 
-          sketchup_model.active_view.zoom(sketchup_model.selection)
+          if sketchup_model.selection.empty?
+            puts 'No object is selected to highlight'
+          else
+            sketchup_model.active_view.zoom(sketchup_model.selection)
+          end
         end
       end
     end