diff --git a/lib/Slic3r/GUI/MainFrame.pm b/lib/Slic3r/GUI/MainFrame.pm
index c48186c76..e36bf4a5e 100644
--- a/lib/Slic3r/GUI/MainFrame.pm
+++ b/lib/Slic3r/GUI/MainFrame.pm
@@ -179,6 +179,7 @@ sub _init_tabpanel {
         my $obj_idx = $event->GetInt;
 
         $self->{plater}->select_object($obj_idx < 0 ? undef: $obj_idx);
+        Wx::MessageBox("Before item_changed_selection", "Slic3r Info", wxOK | wxICON_INFORMATION, $self);
         $self->{plater}->item_changed_selection($obj_idx);
     });       
         
diff --git a/lib/Slic3r/GUI/Plater.pm b/lib/Slic3r/GUI/Plater.pm
index 689ccff28..a12b2aa8e 100644
--- a/lib/Slic3r/GUI/Plater.pm
+++ b/lib/Slic3r/GUI/Plater.pm
@@ -1852,6 +1852,8 @@ sub on_config_change {
 sub item_changed_selection{
     my ($self, $obj_idx) = @_;
 
+    Wx::MessageBox("Inside item_changed_selection", "Slic3r Info", wxOK | wxICON_INFORMATION, $self);
+
     $self->{canvas}->Refresh;
     if ($self->{canvas3D}){
         $self->{canvas3D}->deselect_volumes;
@@ -2065,6 +2067,7 @@ sub select_object {
     if (defined $obj_idx) {
         $self->{objects}->[$obj_idx]->selected(1);
         # Select current object in the list on c++ side
+        Wx::MessageBox("Before select_current_object", "Slic3r Info", wxOK | wxICON_INFORMATION, $self);
         Slic3r::GUI::select_current_object($obj_idx);
     } else {
         # Unselect all objects in the list on c++ side
diff --git a/xs/src/slic3r/GUI/GUI.cpp b/xs/src/slic3r/GUI/GUI.cpp
index 898edc365..11c868326 100644
--- a/xs/src/slic3r/GUI/GUI.cpp
+++ b/xs/src/slic3r/GUI/GUI.cpp
@@ -1128,9 +1128,12 @@ void unselect_objects()
 
 void select_current_object(int idx)
 {
+	wxMessageBox("Inside select_current_object", "Info");
 	m_objects_ctrl->UnselectAll();
+	wxMessageBox("UnselectAll", "Info");
 	if (idx < 0) return;
 	m_objects_ctrl->Select(m_objects_model->GetItemById(idx));
+	wxMessageBox("Item is selected", "Info");
 
 	if (get_view_mode() == ConfigMenuModeExpert){
 		if (!m_sizer_object_buttons->IsShown(1))
@@ -1138,6 +1141,7 @@ void select_current_object(int idx)
 		if (!m_collpane_settings->IsShown())
 			m_collpane_settings->Show(true);
 	}
+	wxMessageBox("Updated sizer showing", "Info");
 }
 
 void add_expert_mode_part(wxWindow* parent, wxBoxSizer* sizer, int event_object_selection_changed)