diff --git a/lib/Slic3r/GUI/3DScene.pm b/lib/Slic3r/GUI/3DScene.pm
index 97f8b3e63..2974179ca 100644
--- a/lib/Slic3r/GUI/3DScene.pm
+++ b/lib/Slic3r/GUI/3DScene.pm
@@ -835,7 +835,7 @@ sub draw_volumes {
         
         my @sorted_z = ();
         my ($min_z, $max_z);
-        if ($volume->range) {
+        if ($volume->range && $volume->offsets) {
             @sorted_z = sort { $a <=> $b } keys %{$volume->offsets};
             
             ($min_z, $max_z) = @{$volume->range};
diff --git a/lib/Slic3r/GUI/Plater/3DPreview.pm b/lib/Slic3r/GUI/Plater/3DPreview.pm
index e34650538..be9b5f572 100644
--- a/lib/Slic3r/GUI/Plater/3DPreview.pm
+++ b/lib/Slic3r/GUI/Plater/3DPreview.pm
@@ -118,6 +118,9 @@ sub load_print {
     if ($self->IsShown) {
         foreach my $object (@{$self->print->objects}) {
             $self->canvas->load_print_object_toolpaths($object);
+            
+            #my @volume_ids = $self->canvas->load_object($object->model_object);
+            #$self->canvas->volumes->[$_]->color->[3] = 0.2 for @volume_ids;
         }
         $self->canvas->zoom_to_volumes;
         $self->_loaded(1);