diff --git a/cura/Settings/MachineManager.py b/cura/Settings/MachineManager.py
index 4d4deddb68..317b68fd47 100644
--- a/cura/Settings/MachineManager.py
+++ b/cura/Settings/MachineManager.py
@@ -34,7 +34,7 @@ class MachineManager(QObject):
         self.globalContainerChanged.connect(self.activeVariantChanged)
         self.globalContainerChanged.connect(self.activeQualityChanged)
 
-        self._stacks_valid = None
+        self._stacks_have_errors = None
         self._onGlobalContainerChanged()
 
         ExtruderManager.getInstance().activeExtruderChanged.connect(self._onActiveExtruderStackChanged)
@@ -233,10 +233,10 @@ class MachineManager(QObject):
             quality.nameChanged.connect(self._onQualityNameChanged)
 
     ##  Update self._stacks_valid according to _checkStacksForErrors and emit if change.
-    def _updateStacksValid(self):
-        old_stacks_valid = self._stacks_valid
-        self._stacks_valid = self._checkStacksValid()
-        if old_stacks_valid != self._stacks_valid:
+    def _updateStacksHaveErrors(self):
+        old_stacks_have_errors = self._stacks_have_errors
+        self._stacks_have_errors = self._checkStacksHaveErrors()
+        if old_stacks_have_errors != self._stacks_have_errors:
             self.stacksValidationChanged.emit()
 
     def _onActiveExtruderStackChanged(self):
@@ -254,7 +254,7 @@ class MachineManager(QObject):
         else:
             self._active_container_stack = self._global_container_stack
 
-        self._updateStacksValid()
+        self._updateStacksHaveErrors()
 
         if old_active_container_stack != self._active_container_stack:
             # Many methods and properties related to the active quality actually depend
@@ -277,18 +277,18 @@ class MachineManager(QObject):
             self.activeStackValueChanged.emit()
 
         if property_name == "validationState":
-            if self._stacks_valid:
+            if not self._stacks_have_errors:
                 # fast update, we only have to look at the current changed property
                 if self._active_container_stack.getProperty(key, "settable_per_extruder"):
                     changed_validation_state = self._active_container_stack.getProperty(key, property_name)
                 else:
                     changed_validation_state = self._global_container_stack.getProperty(key, property_name)
                 if changed_validation_state in (UM.Settings.ValidatorState.Exception, UM.Settings.ValidatorState.MaximumError, UM.Settings.ValidatorState.MinimumError):
-                    self._stacks_valid = False
+                    self._stacks_have_errors = True
                     self.stacksValidationChanged.emit()
             else:
                 # Normal check
-                self._updateStacksValid()
+                self._updateStacksHaveErrors()
 
     @pyqtSlot(str)
     def setActiveMachine(self, stack_id):
@@ -342,30 +342,18 @@ class MachineManager(QObject):
     def _createUniqueName(self, container_type, current_name, new_name, fallback_name):
         return UM.Settings.ContainerRegistry.getInstance().createUniqueName(container_type, current_name, new_name, fallback_name)
 
-    ##  Convenience function to check if a stack is valid.
-    def _checkStackValid(self, stack):
-        if stack is None:
+    def _checkStacksHaveErrors(self):
+        if self._global_container_stack is not None and self._global_container_stack.hasErrors():
             return True
 
-        for key in stack.getAllKeys():
-            validation_state = stack.getProperty(key, "validationState")
-            if validation_state in (UM.Settings.ValidatorState.Exception, UM.Settings.ValidatorState.MaximumError, UM.Settings.ValidatorState.MinimumError):
-                return False
-        return True
-
-    ##  Return True if used stacks are valid.
-    def _checkStacksValid(self):
-        if not self._checkStackValid(self._global_container_stack):
-            return False
-
         if self._global_container_stack is None:
-            return True
+            return False
         stacks = list(ExtruderManager.getInstance().getMachineExtruders(self._global_container_stack.getId()))
         for stack in stacks:
-            if not self._checkStackValid(stack):
-                return False
+            if stack.hasErrors():
+                return True
 
-        return True
+        return False
 
     ##  Remove all instances from the top instanceContainer (effectively removing all user-changed settings)
     @pyqtSlot()
@@ -425,11 +413,11 @@ class MachineManager(QObject):
             container.sendPostponedEmits()
 
     ##  Check if none of the stacks contain error states
-    #   Note that the _stacks_valid is cached due to performance issues
+    #   Note that the _stacks_have_errors is cached due to performance issues
     #   Calling _checkStack(s)ForErrors on every change is simply too expensive
     @pyqtProperty(bool, notify = stacksValidationChanged)
-    def areStacksValid(self):
-        return bool(self._stacks_valid)
+    def stacksHaveErrors(self):
+        return bool(self._stacks_have_errors)
 
     @pyqtProperty(str, notify = activeStackChanged)
     def activeUserProfileId(self):
diff --git a/plugins/CuraEngineBackend/StartSliceJob.py b/plugins/CuraEngineBackend/StartSliceJob.py
index a610fe879a..650bc9e45d 100644
--- a/plugins/CuraEngineBackend/StartSliceJob.py
+++ b/plugins/CuraEngineBackend/StartSliceJob.py
@@ -75,7 +75,7 @@ class StartSliceJob(Job):
             return
 
         # Don't slice if there is a setting with an error value.
-        if not Application.getInstance().getMachineManager().areStacksValid:
+        if Application.getInstance().getMachineManager().stacksHaveErrors:
             self.setResult(StartJobResult.SettingError)
             return
 
diff --git a/resources/qml/Actions.qml b/resources/qml/Actions.qml
index 8d3936fb9c..0ca775ad09 100644
--- a/resources/qml/Actions.qml
+++ b/resources/qml/Actions.qml
@@ -121,7 +121,7 @@ Item
     Action
     {
         id: updateProfileAction;
-        enabled: Cura.MachineManager.areStacksValid && Cura.MachineManager.hasUserSettings && !Cura.MachineManager.isReadOnly(Cura.MachineManager.activeQualityId)
+        enabled: !Cura.MachineManager.stacksHaveErrors && Cura.MachineManager.hasUserSettings && !Cura.MachineManager.isReadOnly(Cura.MachineManager.activeQualityId)
         text: catalog.i18nc("@action:inmenu menubar:profile","&Update profile with current settings");
         onTriggered: Cura.ContainerManager.updateQualityChanges();
     }
@@ -137,7 +137,7 @@ Item
     Action
     {
         id: addProfileAction;
-        enabled: Cura.MachineManager.areStacksValid && Cura.MachineManager.hasUserSettings
+        enabled: !Cura.MachineManager.stacksHaveErrors && Cura.MachineManager.hasUserSettings
         text: catalog.i18nc("@action:inmenu menubar:profile","&Create profile from current settings...");
     }
 
diff --git a/resources/qml/Preferences/ProfilesPage.qml b/resources/qml/Preferences/ProfilesPage.qml
index 3e1ee400a6..47d49849b4 100644
--- a/resources/qml/Preferences/ProfilesPage.qml
+++ b/resources/qml/Preferences/ProfilesPage.qml
@@ -62,7 +62,7 @@ UM.ManagementPage
         Button
         {
             text: catalog.i18nc("@label", "Create")
-            enabled: base.canCreateProfile() && Cura.MachineManager.areStacksValid
+            enabled: base.canCreateProfile() && !Cura.MachineManager.stacksHaveErrors
             visible: base.canCreateProfile()
             iconName: "list-add";