diff --git a/src/slic3r/GUI/ObjColorDialog.cpp b/src/slic3r/GUI/ObjColorDialog.cpp
index cf374c1ad6..e72459af62 100644
--- a/src/slic3r/GUI/ObjColorDialog.cpp
+++ b/src/slic3r/GUI/ObjColorDialog.cpp
@@ -814,10 +814,22 @@ void ObjColorPanel::update_new_add_final_colors()
     } else {
         m_max_filament_index = 0;
     }
+
     if (m_max_filament_index <= m_colours.size()) { // Fix 20240904
         m_new_add_final_colors.clear();
-    } else {
+    }
+    else {
         m_new_add_final_colors.resize(m_max_filament_index - m_colours.size());
+        for (int ii = m_colours.size() ; ii < m_max_filament_index; ii++) {
+            for (int j = 0; j < m_cluster_map_filaments.size(); j++) {
+                if (m_cluster_map_filaments[j] == (ii+ 1) && j < m_new_add_colors.size()) {
+                    auto index                = ii - m_colours.size();
+                    if (index < m_new_add_final_colors.size()) {
+                        m_new_add_final_colors[index] = m_new_add_colors[j];
+                    }
+                }
+            }
+        }
     }
     if (m_new_add_final_colors.size() > 0) {
         m_is_add_filament = true;