diff --git a/src/slic3r/GUI/AMSMaterialsSetting.cpp b/src/slic3r/GUI/AMSMaterialsSetting.cpp
index ecaff4475..ca0484ff4 100644
--- a/src/slic3r/GUI/AMSMaterialsSetting.cpp
+++ b/src/slic3r/GUI/AMSMaterialsSetting.cpp
@@ -631,6 +631,13 @@ void AMSMaterialsSetting::on_select_close(wxCommandEvent &event)
 void AMSMaterialsSetting::set_color(wxColour color)
 {
     //m_clrData->SetColour(color);
+    m_clr_picker->is_empty(false);
+    m_clr_picker->set_color(color);
+}
+
+void AMSMaterialsSetting::set_empty_color(wxColour color)
+{
+    m_clr_picker->is_empty(true);
     m_clr_picker->set_color(color);
 }
 
@@ -1032,6 +1039,13 @@ void ColorPicker::doRender(wxDC& dc)
             dc.DrawBitmap(m_bitmap_border, wxPoint(0, 0));
         }
     }
+
+    if (m_is_empty) {
+        dc.SetTextForeground(*wxBLACK);
+        auto tsize = dc.GetTextExtent("?");
+        auto pot = wxPoint((size.x - tsize.x) / 2, (size.y - tsize.y) / 2);
+        dc.DrawText("?", pot);
+    }
 }
 
 ColorPickerPopup::ColorPickerPopup(wxWindow* parent)
diff --git a/src/slic3r/GUI/AMSMaterialsSetting.hpp b/src/slic3r/GUI/AMSMaterialsSetting.hpp
index 7a88ed930..2ff985be6 100644
--- a/src/slic3r/GUI/AMSMaterialsSetting.hpp
+++ b/src/slic3r/GUI/AMSMaterialsSetting.hpp
@@ -38,7 +38,8 @@ public:
     std::vector<wxColour>        m_cols;
     bool            m_selected{false};
     bool            m_show_full{false};
-    
+    bool            m_is_empty{false};
+
     ColorPicker(wxWindow* parent, wxWindowID id, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize);
     ~ColorPicker();
 
@@ -47,6 +48,7 @@ public:
     void set_colors(std::vector<wxColour>  cols);
     void set_selected(bool sel) {m_selected = sel;Refresh();};
     void set_show_full(bool full) {m_show_full = full;Refresh();};
+    void is_empty(bool empty) {m_is_empty = empty;};
 
     void paintEvent(wxPaintEvent& evt);
     void render(wxDC& dc);
@@ -101,6 +103,7 @@ public:
     void post_select_event();
     void msw_rescale();
     void set_color(wxColour color);
+    void set_empty_color(wxColour color);
     void set_colors(std::vector<wxColour> colors);
 
     void on_picker_color(wxCommandEvent& color);
diff --git a/src/slic3r/GUI/StatusPanel.cpp b/src/slic3r/GUI/StatusPanel.cpp
index 7ca74727f..b43a33d7b 100644
--- a/src/slic3r/GUI/StatusPanel.cpp
+++ b/src/slic3r/GUI/StatusPanel.cpp
@@ -2975,7 +2975,12 @@ void StatusPanel::on_filament_edit(wxCommandEvent &event)
                             cols.push_back( AmsTray::decode_color(col));
                         }
 
-                        m_filament_setting_dlg->set_colors(cols);
+                        if (m_filament_setting_dlg->ams_filament_id.empty()) {
+                            m_filament_setting_dlg->set_empty_color(color);
+                        }
+                        else {
+                            m_filament_setting_dlg->set_color(color);
+                        }
 
                         m_filament_setting_dlg->ams_filament_id = tray_it->second->setting_id;
                         m_filament_setting_dlg->m_is_third = !MachineObject::is_bbl_filament(tray_it->second->tag_uid);
@@ -3014,8 +3019,16 @@ void StatusPanel::on_ext_spool_edit(wxCommandEvent &event)
             k_val = wxString::Format("%.3f", obj->vt_tray.k);
             n_val = wxString::Format("%.3f", obj->vt_tray.n);
             wxColor color = AmsTray::decode_color(obj->vt_tray.color);
-            m_filament_setting_dlg->set_color(color);
             m_filament_setting_dlg->ams_filament_id = obj->vt_tray.setting_id;
+
+
+            if (m_filament_setting_dlg->ams_filament_id.empty()) {
+                m_filament_setting_dlg->set_empty_color(color);
+            }
+            else {
+                m_filament_setting_dlg->set_color(color);
+            }
+            
             m_filament_setting_dlg->m_is_third = !MachineObject::is_bbl_filament(obj->vt_tray.tag_uid);
             if (!m_filament_setting_dlg->m_is_third) {
                 sn_number = obj->vt_tray.uuid;
diff --git a/src/slic3r/GUI/Widgets/AMSControl.cpp b/src/slic3r/GUI/Widgets/AMSControl.cpp
index 753259efd..63899bf0c 100644
--- a/src/slic3r/GUI/Widgets/AMSControl.cpp
+++ b/src/slic3r/GUI/Widgets/AMSControl.cpp
@@ -736,10 +736,10 @@ void AMSLib::render(wxDC &dc)
         || m_info.material_state == AMSCanType::AMS_CAN_TYPE_BRAND
         || m_info.material_state == AMSCanType::AMS_CAN_TYPE_VIRTUAL) {
 
-        if (m_info.material_name.empty() &&  m_info.material_state != AMSCanType::AMS_CAN_TYPE_VIRTUAL) {
+        if (m_info.material_name.empty() /*&&  m_info.material_state != AMSCanType::AMS_CAN_TYPE_VIRTUAL*/) {
             auto tsize = dc.GetMultiLineTextExtent("?");
             auto pot = wxPoint(0, 0);
-            if (m_show_kn) {
+            if (m_obj->is_function_supported(PrinterFunction::FUNC_EXTRUSION_CALI)) {
                 pot = wxPoint((libsize.x - tsize.x) / 2, (libsize.y - tsize.y) / 2 - FromDIP(9));
             } else {
                 pot = wxPoint((libsize.x - tsize.x) / 2, (libsize.y - tsize.y) / 2 + FromDIP(3));