diff --git a/src/slic3r/GUI/PresetComboBoxes.cpp b/src/slic3r/GUI/PresetComboBoxes.cpp
index c52e9a604..9e2a05e8d 100644
--- a/src/slic3r/GUI/PresetComboBoxes.cpp
+++ b/src/slic3r/GUI/PresetComboBoxes.cpp
@@ -1094,6 +1094,9 @@ void PlaterPresetComboBox::update()
     }
 
     update_selection();
+    if (selected_system_preset != GetValue()) {
+        sendComboBoxEvent();
+    }
     Thaw();
 
     if (!tooltip.IsEmpty()) {
diff --git a/src/slic3r/GUI/WebGuideDialog.cpp b/src/slic3r/GUI/WebGuideDialog.cpp
index 8cfc9919a..c8f3dd647 100644
--- a/src/slic3r/GUI/WebGuideDialog.cpp
+++ b/src/slic3r/GUI/WebGuideDialog.cpp
@@ -795,7 +795,8 @@ bool GuideFrame::apply_config(AppConfig *app_config, PresetBundle *preset_bundle
             first_added_preset = get_first_added_preset(old_presets, m_appconfig_new.get_section(section_name));
         }
     };
-    get_first_added_material_preset(AppConfig::SECTION_FILAMENTS, first_added_filament);
+    // Not switch filament
+    //get_first_added_material_preset(AppConfig::SECTION_FILAMENTS, first_added_filament);
 
     //update the app_config
     app_config->set_section(AppConfig::SECTION_FILAMENTS, enabled_filaments);
@@ -819,6 +820,7 @@ bool GuideFrame::run()
 
     //p->set_run_reason(reason);
     //p->set_start_page(start_page);
+    app.preset_bundle->export_selections(*app.app_config);
 
     BOOST_LOG_TRIVIAL(info) << "GuideFrame before ShowModal";
     if (this->ShowModal() == wxID_OK) {
diff --git a/src/slic3r/GUI/Widgets/ComboBox.cpp b/src/slic3r/GUI/Widgets/ComboBox.cpp
index d2cd6797b..800e93a58 100644
--- a/src/slic3r/GUI/Widgets/ComboBox.cpp
+++ b/src/slic3r/GUI/Widgets/ComboBox.cpp
@@ -263,13 +263,7 @@ void ComboBox::keyDown(wxKeyEvent& event)
             } else {
                 break;
             }
-            {
-                wxCommandEvent e(wxEVT_COMBOBOX);
-                e.SetEventObject(this);
-                e.SetId(GetId());
-                e.SetInt(GetSelection());
-                GetEventHandler()->ProcessEvent(e);
-            }
+            sendComboBoxEvent();
             break;
         case WXK_TAB:
             HandleAsNavigationKey(event);
diff --git a/src/slic3r/GUI/Widgets/ComboBox.hpp b/src/slic3r/GUI/Widgets/ComboBox.hpp
index 86d57ff2f..7158cb2fb 100644
--- a/src/slic3r/GUI/Widgets/ComboBox.hpp
+++ b/src/slic3r/GUI/Widgets/ComboBox.hpp
@@ -74,6 +74,8 @@ protected:
     
     void OnEdit() override;
 
+    void sendComboBoxEvent();
+
 #ifdef __WIN32__
     WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) override;
 #endif
@@ -85,8 +87,6 @@ private:
     void mouseWheelMoved(wxMouseEvent &event);
     void keyDown(wxKeyEvent &event);
 
-    void sendComboBoxEvent();
-
     DECLARE_EVENT_TABLE()
 };