diff --git a/cura/Machines/VariantManager.py b/cura/Machines/VariantManager.py
index c80545145f..9c074dcf17 100644
--- a/cura/Machines/VariantManager.py
+++ b/cura/Machines/VariantManager.py
@@ -115,7 +115,7 @@ class VariantManager:
                        variant_type: Optional["VariantType"] = None) -> Optional["ContainerNode"]:
         if variant_type is None:
             variant_node = None
-            variant_type_dict = self._machine_to_variant_dict_map[machine_definition_id]
+            variant_type_dict = self._machine_to_variant_dict_map.get("machine_definition_id", {})
             for variant_dict in variant_type_dict.values():
                 if variant_name in variant_dict:
                     variant_node = variant_dict[variant_name]
diff --git a/plugins/XmlMaterialProfile/XmlMaterialProfile.py b/plugins/XmlMaterialProfile/XmlMaterialProfile.py
index 2ab9e701eb..157d871d54 100644
--- a/plugins/XmlMaterialProfile/XmlMaterialProfile.py
+++ b/plugins/XmlMaterialProfile/XmlMaterialProfile.py
@@ -244,7 +244,10 @@ class XmlMaterialProfile(InstanceContainer):
 
             variant_name = container.getMetaDataEntry("variant_name")
             if variant_name:
-                variant_dict = {"variant_node": variant_manager.getVariantNode(definition_id, variant_name),
+                variant_node = variant_manager.getVariantNode(definition_id, variant_name)
+                if variant_node is None:
+                    continue
+                variant_dict = {"variant_node":variant_node ,
                                 "material_container": container}
                 machine_variant_map[definition_id][variant_name] = variant_dict
                 continue