diff --git a/cura/Settings/CuraStackBuilder.py b/cura/Settings/CuraStackBuilder.py
index ff05a1e00a..a15797cf7f 100644
--- a/cura/Settings/CuraStackBuilder.py
+++ b/cura/Settings/CuraStackBuilder.py
@@ -93,6 +93,8 @@ class CuraStackBuilder:
         # assume the material and variant have already been set.
         if "definition_changes" in kwargs:
             stack.setDefinitionChangesById(kwargs["definition_changes"])
+        else:
+            stack.setDefinitionChanges(cls._createDefinitionChangesContainer(stack, new_stack_id + "_settings"))
 
         if "variant" in kwargs:
             stack.setVariantById(kwargs["variant"])
@@ -140,6 +142,8 @@ class CuraStackBuilder:
         # assume the material and variant have already been set.
         if "definition_changes" in kwargs:
             stack.setDefinitionChangesById(kwargs["definition_changes"])
+        else:
+            stack.setDefinitionChanges(cls._createDefinitionChangesContainer(stack, new_stack_id + "_settings"))
 
         if "variant" in kwargs:
             stack.setVariantById(kwargs["variant"])
@@ -158,3 +162,17 @@ class CuraStackBuilder:
         registry.addContainer(user_container)
 
         return stack
+
+    @classmethod
+    def _createDefinitionChangesContainer(cls, container_stack, container_name, container_index = None):
+        from cura.CuraApplication import CuraApplication
+        definition_changes_container = InstanceContainer(container_name)
+        definition = container_stack.getBottom()
+        definition_changes_container.setDefinition(definition)
+        definition_changes_container.addMetaDataEntry("type", "definition_changes")
+        definition_changes_container.addMetaDataEntry("setting_version", CuraApplication.SettingVersion)
+
+        ContainerRegistry.getInstance().addContainer(definition_changes_container)
+        container_stack.definitionChanges = definition_changes_container
+
+        return definition_changes_container
diff --git a/plugins/CuraEngineBackend/CuraEngineBackend.py b/plugins/CuraEngineBackend/CuraEngineBackend.py
index 98f8473225..3710d33965 100755
--- a/plugins/CuraEngineBackend/CuraEngineBackend.py
+++ b/plugins/CuraEngineBackend/CuraEngineBackend.py
@@ -88,10 +88,6 @@ class CuraEngineBackend(QObject, Backend):
         Application.getInstance().globalContainerStackChanged.connect(self._onGlobalStackChanged)
         self._onGlobalStackChanged()
 
-        self._active_extruder_stack = None
-        ExtruderManager.getInstance().activeExtruderChanged.connect(self._onActiveExtruderChanged)
-        self._onActiveExtruderChanged()
-
         Application.getInstance().stacksValidationFinished.connect(self._onStackErrorCheckFinished)
 
         # A flag indicating if an error check was scheduled
@@ -622,6 +618,7 @@ class CuraEngineBackend(QObject, Backend):
 
             for extruder in extruders:
                 extruder.propertyChanged.disconnect(self._onSettingChanged)
+                extruder.containersChanged.disconnect(self._onChanged)
 
         self._global_container_stack = Application.getInstance().getGlobalContainerStack()
 
@@ -631,23 +628,9 @@ class CuraEngineBackend(QObject, Backend):
             extruders = list(ExtruderManager.getInstance().getMachineExtruders(self._global_container_stack.getId()))
             for extruder in extruders:
                 extruder.propertyChanged.connect(self._onSettingChanged)
-            self._onActiveExtruderChanged()
+                extruder.containersChanged.connect(self._onChanged)
             self._onChanged()
 
-    def _onActiveExtruderChanged(self):
-        if self._global_container_stack:
-            # Connect all extruders of the active machine. This might cause a few connects that have already happend,
-            # but that shouldn't cause issues as only new / unique connections are added.
-            extruders = list(ExtruderManager.getInstance().getMachineExtruders(self._global_container_stack.getId()))
-            for extruder in extruders:
-                extruder.propertyChanged.connect(self._onSettingChanged)
-        if self._active_extruder_stack:
-            self._active_extruder_stack.containersChanged.disconnect(self._onChanged)
-
-        self._active_extruder_stack = ExtruderManager.getInstance().getActiveExtruderStack()
-        if self._active_extruder_stack:
-            self._active_extruder_stack.containersChanged.connect(self._onChanged)
-
     def _onProcessLayersFinished(self, job):
         self._process_layers_job = None
 
diff --git a/resources/qml/Settings/SettingView.qml b/resources/qml/Settings/SettingView.qml
index 822322ad2d..485d364b2d 100644
--- a/resources/qml/Settings/SettingView.qml
+++ b/resources/qml/Settings/SettingView.qml
@@ -238,10 +238,16 @@ Item
                     when: model.settable_per_extruder || (inheritStackProvider.properties.limit_to_extruder != null && inheritStackProvider.properties.limit_to_extruder >= 0);
                     value:
                     {
+                        // associate this binding with Cura.MachineManager.activeMachineId in the beginning so this
+                        // binding will be triggered when activeMachineId is changed too.
+                        // Otherwise, if this value only depends on the extruderIds, it won't get updated when the
+                        // machine gets changed.
+                        var activeMachineId = Cura.MachineManager.activeMachineId;
+
                         if(!model.settable_per_extruder || machineExtruderCount.properties.value == 1)
                         {
                             //Not settable per extruder or there only is global, so we must pick global.
-                            return Cura.MachineManager.activeMachineId;
+                            return activeMachineId;
                         }
                         if(inheritStackProvider.properties.limit_to_extruder != null && inheritStackProvider.properties.limit_to_extruder >= 0)
                         {
@@ -254,7 +260,7 @@ Item
                             return ExtruderManager.activeExtruderStackId;
                         }
                         //No extruder tab is selected. Pick the global stack. Shouldn't happen any more since we removed the global tab.
-                        return Cura.MachineManager.activeMachineId;
+                        return activeMachineId;
                     }
                 }