diff --git a/cura/Settings/ExtruderManager.py b/cura/Settings/ExtruderManager.py
index 34b283107d..32e3867300 100755
--- a/cura/Settings/ExtruderManager.py
+++ b/cura/Settings/ExtruderManager.py
@@ -356,14 +356,16 @@ class ExtruderManager(QObject):
     #   \return \type{List[ContainerStack]} a list of
     def getActiveExtruderStacks(self) -> List["ExtruderStack"]:
         global_stack = Application.getInstance().getGlobalContainerStack()
+        if not global_stack:
+            return None
 
         result = []
-        machine_extruder_count = global_stack.getProperty("machine_extruder_count", "value")
-
-        if global_stack and global_stack.getId() in self._extruder_trains:
+        if global_stack.getId() in self._extruder_trains:
             for extruder in sorted(self._extruder_trains[global_stack.getId()]):
                 result.append(self._extruder_trains[global_stack.getId()][extruder])
 
+        machine_extruder_count = global_stack.getProperty("machine_extruder_count", "value")
+
         return result[:machine_extruder_count]
 
     def __globalContainerStackChanged(self) -> None:
diff --git a/cura/Settings/MachineManager.py b/cura/Settings/MachineManager.py
index 253c5f793c..afd038b45d 100755
--- a/cura/Settings/MachineManager.py
+++ b/cura/Settings/MachineManager.py
@@ -499,10 +499,6 @@ class MachineManager(QObject):
     def activeVariantNames(self) -> List[str]:
         result = []
 
-        # it can happen when there is no active machine
-        if self._global_container_stack is None:
-            return result
-
         active_stacks = ExtruderManager.getInstance().getActiveGlobalAndExtruderStacks()
         if active_stacks is not None:
             for stack in active_stacks:
@@ -516,10 +512,6 @@ class MachineManager(QObject):
     def activeMaterialNames(self) -> List[str]:
         result = []
 
-        # it can happen when there is no active machine
-        if self._global_container_stack is None:
-            return result
-
         active_stacks = ExtruderManager.getInstance().getActiveGlobalAndExtruderStacks()
         if active_stacks is not None:
             for stack in active_stacks:
@@ -541,10 +533,6 @@ class MachineManager(QObject):
     def allActiveVariantIds(self) -> Dict[str, str]:
         result = {}
 
-        # it can happen when there is no active machine
-        if self._global_container_stack is None:
-            return result
-
         active_stacks = ExtruderManager.getInstance().getActiveExtruderStacks()
         if active_stacks is not None: #If we have a global stack.
             for stack in active_stacks:
@@ -564,14 +552,7 @@ class MachineManager(QObject):
     def allActiveMaterialIds(self) -> Dict[str, str]:
         result = {}
 
-        # it can happen when there is no active machine
-        if self._global_container_stack is None:
-            return result
-
         active_stacks = ExtruderManager.getInstance().getActiveExtruderStacks()
-
-        result[self._global_container_stack.getId()] = self._global_container_stack.material.getId()
-
         if active_stacks is not None:  # If we have extruder stacks
             for stack in active_stacks:
                 material_container = stack.material