diff --git a/lib/Slic3r/GUI/Plater.pm b/lib/Slic3r/GUI/Plater.pm
index 9f7094700d..2760747d0e 100644
--- a/lib/Slic3r/GUI/Plater.pm
+++ b/lib/Slic3r/GUI/Plater.pm
@@ -1197,8 +1197,7 @@ sub changescale {
     my $model_object = $self->{model}->objects->[$obj_idx];
     my $model_instance = $model_object->instances->[0];
     
-    my $object_size = $model_object->bounding_box->size;
-    my $bed_size = Slic3r::Polygon->new_scale(@{$self->{config}->bed_shape})->bounding_box->size;
+    my $object_size = $model_object->instance_bounding_box(0)->size;
     
     if (defined $axis) {
         my $axis_name = $axis == X ? 'X' : $axis == Y ? 'Y' : 'Z';
@@ -1206,7 +1205,7 @@ sub changescale {
         if ($tosize) {
             my $cursize = $object_size->[$axis];
             my $newsize = $self->_get_number_from_user(
-                sprintf(L('Enter the new size for the selected object (print bed: %smm):'), unscale($bed_size->[$axis])), 
+                L('Enter the new size for the selected object:'), 
                 L("Scale along ").$axis_name, L('Invalid scaling value entered'), $cursize, 1);
             return if $newsize eq '';
             $scale = $newsize / $cursize * 100;
@@ -1362,7 +1361,9 @@ sub async_apply_config {
 
         # We also need to reload 3D scene because of the wipe tower preview box
         if ($self->{config}->wipe_tower) {
-	       Slic3r::GUI::_3DScene::reload_scene($self->{canvas3D}, 1) if $self->{canvas3D}
+            my $selections = $self->collect_selections;
+            Slic3r::GUI::_3DScene::set_objects_selections($self->{canvas3D}, \@$selections);
+	        Slic3r::GUI::_3DScene::reload_scene($self->{canvas3D}, 1) if $self->{canvas3D}
         }
     }
 }
@@ -1578,6 +1579,8 @@ sub on_process_completed {
     $self->{preview3D}->reload_print if $self->{preview3D};
 
     # in case this was MM print, wipe tower bounding box on 3D tab might need redrawing with exact depth:
+    my $selections = $self->collect_selections;
+    Slic3r::GUI::_3DScene::set_objects_selections($self->{canvas3D}, \@$selections);
     Slic3r::GUI::_3DScene::reload_scene($self->{canvas3D}, 1);
     
     # if we have an export filename, start a new thread for exporting G-code