diff --git a/cura/Machines/MaterialManager.py b/cura/Machines/MaterialManager.py
index 664d55a4c1..54216972a4 100644
--- a/cura/Machines/MaterialManager.py
+++ b/cura/Machines/MaterialManager.py
@@ -256,8 +256,9 @@ class MaterialManager(QObject):
         material_id_metadata_dict = dict()
         for node in nodes_to_check:
             if node is not None:
-                material_id_metadata_dict = {mid: node for mid, node in node.material_map.items()}
-                break
+                for material_id, node in node.material_map.items():
+                    if material_id not in material_id_metadata_dict:
+                        material_id_metadata_dict[material_id] = node
 
         return material_id_metadata_dict
 
diff --git a/cura/Machines/VariantManager.py b/cura/Machines/VariantManager.py
index 05ddfe869c..834b47dd0f 100644
--- a/cura/Machines/VariantManager.py
+++ b/cura/Machines/VariantManager.py
@@ -83,4 +83,4 @@ class VariantManager:
     def getVariantNodes(self, machine: "GlobalStack",
                         variant_type: Optional[str] = VariantType.NOZZLE) -> dict:
         machine_definition_id = machine.definition.getId()
-        return self._machine_to_variant_dict_map[machine_definition_id].get(variant_type, {})
+        return self._machine_to_variant_dict_map.get(machine_definition_id, {}).get(variant_type, {})