diff --git a/lib/Slic3r/GUI/3DScene.pm b/lib/Slic3r/GUI/3DScene.pm
index 1995805f87..5f33b17abc 100644
--- a/lib/Slic3r/GUI/3DScene.pm
+++ b/lib/Slic3r/GUI/3DScene.pm
@@ -18,19 +18,19 @@ use warnings;
 use Wx qw(wxTheApp :timer :bitmap :icon :dialog);
 #==============================================================================================================================
 #use Wx::Event qw(EVT_PAINT EVT_SIZE EVT_ERASE_BACKGROUND EVT_IDLE EVT_MOUSEWHEEL EVT_MOUSE_EVENTS EVT_CHAR EVT_TIMER);
-#==============================================================================================================================
 # must load OpenGL *before* Wx::GLCanvas
 use OpenGL qw(:glconstants :glfunctions :glufunctions :gluconstants);
 use base qw(Wx::GLCanvas Class::Accessor);
-use Math::Trig qw(asin tan);
-use List::Util qw(reduce min max first);
 #==============================================================================================================================
-use Slic3r::Geometry qw(X Y);
+#use Math::Trig qw(asin tan);
+#use List::Util qw(reduce min max first);
 #use Slic3r::Geometry qw(X Y normalize scale unscale scaled_epsilon);
 #use Slic3r::Geometry::Clipper qw(offset_ex intersection_pl JT_ROUND);
 #==============================================================================================================================
 use Wx::GLCanvas qw(:all);
-use Slic3r::Geometry qw(PI);
+#==============================================================================================================================
+#use Slic3r::Geometry qw(PI);
+#==============================================================================================================================
 
 # volumes: reference to vector of Slic3r::GUI::3DScene::Volume.
 #==============================================================================================================================
@@ -259,12 +259,10 @@ sub new {
 
 sub Destroy {
     my ($self) = @_;
-#==============================================================================================================================
-#    $self->{layer_height_edit_timer}->Stop;
-#==============================================================================================================================
-    $self->DestroyGL;
 #==============================================================================================================================
     Slic3r::GUI::_3DScene::remove_canvas($self);    
+#    $self->{layer_height_edit_timer}->Stop;
+#    $self->DestroyGL;
 #==============================================================================================================================
     return $self->SUPER::Destroy;
 }
@@ -1247,13 +1245,11 @@ sub SetCurrent {
 #        }
 #    }
 #}
-#===================================================================================================================================        
-
-sub DestroyGL {
-    my $self = shift;
-    if ($self->GetContext) {
-        $self->SetCurrent($self->GetContext);
-#===================================================================================================================================        
+#
+#sub DestroyGL {
+#    my $self = shift;
+#    if ($self->GetContext) {
+#        $self->SetCurrent($self->GetContext);
 #        if ($self->{plain_shader}) {
 #            $self->{plain_shader}->release;
 #            delete $self->{plain_shader};
@@ -1262,12 +1258,10 @@ sub DestroyGL {
 #            $self->{layer_height_edit_shader}->release;
 #            delete $self->{layer_height_edit_shader};
 #        }
-#===================================================================================================================================        
-        $self->volumes->release_geometry;
-    }
-}
-
-#==============================================================================================================================
+#        $self->volumes->release_geometry;
+#    }
+#}
+#
 #sub Render {
 #    my ($self, $dc) = @_;
 #    
@@ -2145,10 +2139,12 @@ sub DestroyGL {
 package Slic3r::GUI::3DScene;
 use base qw(Slic3r::GUI::3DScene::Base);
 
-use OpenGL qw(:glconstants :gluconstants :glufunctions);
-use List::Util qw(first min max);
-use Slic3r::Geometry qw(scale unscale epsilon);
-use Slic3r::Print::State ':steps';
+#===================================================================================================================================        
+#use OpenGL qw(:glconstants :gluconstants :glufunctions);
+#use List::Util qw(first min max);
+#use Slic3r::Geometry qw(scale unscale epsilon);
+#use Slic3r::Print::State ':steps';
+#===================================================================================================================================        
 
 #===================================================================================================================================        
 #__PACKAGE__->mk_accessors(qw(
diff --git a/lib/Slic3r/GUI/MainFrame.pm b/lib/Slic3r/GUI/MainFrame.pm
index ebbbcf43eb..6a2246fa16 100644
--- a/lib/Slic3r/GUI/MainFrame.pm
+++ b/lib/Slic3r/GUI/MainFrame.pm
@@ -91,6 +91,7 @@ sub new {
         # but in rare cases it may not have been called yet.
         wxTheApp->{app_config}->save;
 #==============================================================================================================================
+        $self->{plater}->{print} = undef if($self->{plater});
         Slic3r::GUI::_3DScene::remove_all_canvases();
 #==============================================================================================================================
         # propagate event
diff --git a/lib/Slic3r/GUI/Plater/3D.pm b/lib/Slic3r/GUI/Plater/3D.pm
index 2a710b6f9f..6641d45e5f 100644
--- a/lib/Slic3r/GUI/Plater/3D.pm
+++ b/lib/Slic3r/GUI/Plater/3D.pm
@@ -32,7 +32,9 @@ sub new {
     
     $self->{objects}            = $objects;
     $self->{model}              = $model;
-    $self->{print}              = $print;
+#==============================================================================================================================
+#    $self->{print}              = $print;
+#==============================================================================================================================
     $self->{config}             = $config;
 #==============================================================================================================================
     Slic3r::GUI::_3DScene::set_print($self, $print);
diff --git a/xs/src/slic3r/GUI/GLCanvas3D.cpp b/xs/src/slic3r/GUI/GLCanvas3D.cpp
index 783ae52f8c..41741eef82 100644
--- a/xs/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/xs/src/slic3r/GUI/GLCanvas3D.cpp
@@ -969,6 +969,12 @@ GLCanvas3D::GLCanvas3D(wxGLCanvas* canvas, wxGLContext* context)
 
 GLCanvas3D::~GLCanvas3D()
 {
+    if (m_volumes != nullptr)
+    {
+        set_current();
+        m_volumes->release_geometry();
+    }
+
     if (m_timer != nullptr)
     {
         delete m_timer;
@@ -1836,6 +1842,57 @@ void GLCanvas3D::register_on_move_callback(void* callback)
         m_on_move_callback.register_callback(callback);
 }
 
+void GLCanvas3D::bind_event_handlers()
+{
+    if (m_canvas != nullptr)
+    {
+        m_canvas->Bind(wxEVT_SIZE, &GLCanvas3D::on_size, this);
+        m_canvas->Bind(wxEVT_IDLE, &GLCanvas3D::on_idle, this);
+        m_canvas->Bind(wxEVT_CHAR, &GLCanvas3D::on_char, this);
+        m_canvas->Bind(wxEVT_MOUSEWHEEL, &GLCanvas3D::on_mouse_wheel, this);
+        m_canvas->Bind(wxEVT_TIMER, &GLCanvas3D::on_timer, this);
+        m_canvas->Bind(wxEVT_LEFT_DOWN, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_LEFT_UP, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_MIDDLE_DOWN, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_MIDDLE_UP, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_RIGHT_DOWN, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_RIGHT_UP, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_MOTION, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_ENTER_WINDOW, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_LEAVE_WINDOW, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_LEFT_DCLICK, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_MIDDLE_DCLICK, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_RIGHT_DCLICK, &GLCanvas3D::on_mouse, this);
+        m_canvas->Bind(wxEVT_PAINT, &GLCanvas3D::on_paint, this);
+    }
+}
+
+void GLCanvas3D::unbind_event_handlers()
+{
+    if (m_canvas != nullptr)
+    {
+        m_canvas->GetEventHandler()->ProcessPendingEvents();
+        m_canvas->Unbind(wxEVT_SIZE, &GLCanvas3D::on_size, this);
+        m_canvas->Unbind(wxEVT_IDLE, &GLCanvas3D::on_idle, this);
+        m_canvas->Unbind(wxEVT_CHAR, &GLCanvas3D::on_char, this);
+        m_canvas->Unbind(wxEVT_MOUSEWHEEL, &GLCanvas3D::on_mouse_wheel, this);
+        m_canvas->Unbind(wxEVT_TIMER, &GLCanvas3D::on_timer, this);
+        m_canvas->Unbind(wxEVT_LEFT_DOWN, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_LEFT_UP, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_MIDDLE_DOWN, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_MIDDLE_UP, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_RIGHT_DOWN, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_RIGHT_UP, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_MOTION, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_ENTER_WINDOW, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_LEAVE_WINDOW, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_LEFT_DCLICK, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_MIDDLE_DCLICK, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_RIGHT_DCLICK, &GLCanvas3D::on_mouse, this);
+        m_canvas->Unbind(wxEVT_PAINT, &GLCanvas3D::on_paint, this);
+    }
+}
+
 void GLCanvas3D::on_size(wxSizeEvent& evt)
 {
     m_dirty = true;
diff --git a/xs/src/slic3r/GUI/GLCanvas3D.hpp b/xs/src/slic3r/GUI/GLCanvas3D.hpp
index c8533f5147..7bd93a32eb 100644
--- a/xs/src/slic3r/GUI/GLCanvas3D.hpp
+++ b/xs/src/slic3r/GUI/GLCanvas3D.hpp
@@ -442,6 +442,9 @@ public:
     void register_on_model_update_callback(void* callback);
     void register_on_move_callback(void* callback);
 
+    void bind_event_handlers();
+    void unbind_event_handlers();
+
     void on_size(wxSizeEvent& evt);
     void on_idle(wxIdleEvent& evt);
     void on_char(wxKeyEvent& evt);
diff --git a/xs/src/slic3r/GUI/GLCanvas3DManager.cpp b/xs/src/slic3r/GUI/GLCanvas3DManager.cpp
index bfb11d9724..26c19e9fd3 100644
--- a/xs/src/slic3r/GUI/GLCanvas3DManager.cpp
+++ b/xs/src/slic3r/GUI/GLCanvas3DManager.cpp
@@ -138,25 +138,7 @@ bool GLCanvas3DManager::add(wxGLCanvas* canvas, wxGLContext* context)
     if (canvas3D == nullptr)
         return false;
 
-    canvas->Bind(wxEVT_SIZE, [canvas3D](wxSizeEvent& evt) { canvas3D->on_size(evt); });
-    canvas->Bind(wxEVT_IDLE, [canvas3D](wxIdleEvent& evt) { canvas3D->on_idle(evt); });
-    canvas->Bind(wxEVT_CHAR, [canvas3D](wxKeyEvent& evt)  { canvas3D->on_char(evt); });
-    canvas->Bind(wxEVT_MOUSEWHEEL, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse_wheel(evt); });
-    canvas->Bind(wxEVT_TIMER, [canvas3D](wxTimerEvent& evt) { canvas3D->on_timer(evt); });
-    canvas->Bind(wxEVT_LEFT_DOWN, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_LEFT_UP, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_MIDDLE_DOWN, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_MIDDLE_UP, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_RIGHT_DOWN, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_RIGHT_UP, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_MOTION, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_ENTER_WINDOW, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_LEAVE_WINDOW, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_LEFT_DCLICK, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_MIDDLE_DCLICK, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_RIGHT_DCLICK, [canvas3D](wxMouseEvent& evt) { canvas3D->on_mouse(evt); });
-    canvas->Bind(wxEVT_PAINT, [canvas3D](wxPaintEvent& evt) { canvas3D->on_paint(evt); });
-
+    canvas3D->bind_event_handlers();
     m_canvases.insert(CanvasesMap::value_type(canvas, canvas3D));
 
     std::cout << "canvas added: " << (void*)canvas << " (" << (void*)canvas3D << ")" << std::endl;
@@ -170,6 +152,7 @@ bool GLCanvas3DManager::remove(wxGLCanvas* canvas)
     if (it == m_canvases.end())
         return false;
 
+    it->second->unbind_event_handlers();
     delete it->second;
     m_canvases.erase(it);
 
@@ -183,6 +166,8 @@ void GLCanvas3DManager::remove_all()
     for (CanvasesMap::value_type& item : m_canvases)
     {
         std::cout << "canvas removed: " << (void*)item.second << std::endl;
+
+        item.second->unbind_event_handlers();
         delete item.second;
     }
     m_canvases.clear();