diff --git a/src/slic3r/GUI/PartPlate.cpp b/src/slic3r/GUI/PartPlate.cpp
index 12a7670fb5..c95494608d 100644
--- a/src/slic3r/GUI/PartPlate.cpp
+++ b/src/slic3r/GUI/PartPlate.cpp
@@ -1730,7 +1730,7 @@ std::vector<int> PartPlate::get_used_filaments()
 bool PartPlate::check_filament_printable(const DynamicPrintConfig &config, wxString& error_message)
 {
     error_message.clear();
-    FilamentMapMode mode = config.option<ConfigOptionEnum<FilamentMapMode>>("filament_map_mode")->value;
+    FilamentMapMode mode = this->get_real_filament_map_mode(config);
     // only check printablity if we have explicit map result
     if (mode != fmmManual)
         return true;
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 5e7d51597b..469533ea9c 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -7879,6 +7879,18 @@ void Plater::priv::on_select_preset(wxCommandEvent &evt)
                 preset_name = physical_printers.get_selected_printer_preset_name();
             else
                 physical_printers.unselect_printer();
+
+
+            // sync extruder info when select multi_extruder preset
+            if (Slic3r::DeviceManager *dev = Slic3r::GUI::wxGetApp().getDeviceManager()) {
+                MachineObject *obj = dev->get_selected_machine();
+                if (obj && obj->is_multi_extruders()) {
+                    PresetBundle *preset_bundle = wxGetApp().preset_bundle;
+                    if (preset_bundle->printers.get_edited_preset().get_printer_type(preset_bundle) == obj->printer_type) {
+                        GUI::wxGetApp().sidebar().sync_extruder_list();
+                    }
+                }
+            }
         }
         //BBS
         //wxWindowUpdateLocker noUpdates1(sidebar->print_panel());