When unable to find quality for material, we also use inherited files (if any) to resolve it

CURA-2108

cura/Settings/MachineManager.py

@@ -19,6 +19,7 @@ from UM.i18n import i18nCatalog
 catalog = i18nCatalog("cura")
 
 import time
+import os
 
 class MachineManager(QObject):
     def __init__(self, parent = None):
@@ -833,7 +834,22 @@ class MachineManager(QObject):
             return containers[0]
 
         if "material" in search_criteria:
-            # If a quality for this specific material cannot be found, try finding qualities for a generic version of the material
+            # First check if we can solve our material not found problem by checking if we can find quality containers
+            # that are assigned to the parents of this material profile.
+            try:
+                inherited_files = material_container.getInheritedFiles()
+                if inherited_files:
+                    for inherited_file in inherited_files:
+                        # Extract the ID from the path we used to load the file.
+                        search_criteria["material"] = os.path.basename(inherited_file).split(".")[0]
+                        containers = container_registry.findInstanceContainers(**search_criteria)
+                        if containers:
+                            return containers[0]
+            except AttributeError:  # Material_container does not support inheritance.
+                pass
+
+            # We still weren't able to find a quality for this specific material.
+            # Try to find qualities for a generic version of the material.
             material_search_criteria = { "type": "material", "material": material_container.getMetaDataEntry("material"), "color_name": "Generic" }
             if definition.getMetaDataEntry("has_machine_quality"):
                 if material_container: