diff --git a/cura/Settings/MachineManager.py b/cura/Settings/MachineManager.py
index c54715bd6c..ea6a6123ff 100644
--- a/cura/Settings/MachineManager.py
+++ b/cura/Settings/MachineManager.py
@@ -53,8 +53,6 @@ class MachineManager(QObject):
         ExtruderManager.getInstance().activeExtruderChanged.connect(self.activeStackChanged)
         self.activeStackChanged.connect(self.activeStackValueChanged)
 
-
-
         Preferences.getInstance().addPreference("cura/active_machine", "")
 
         self._global_event_keys = set()
diff --git a/plugins/3MFReader/WorkspaceDialog.py b/plugins/3MFReader/WorkspaceDialog.py
index 0055b209ff..cea935ba18 100644
--- a/plugins/3MFReader/WorkspaceDialog.py
+++ b/plugins/3MFReader/WorkspaceDialog.py
@@ -175,8 +175,8 @@ class WorkspaceDialog(QObject):
     @pyqtSlot()
     ##  Used to notify the dialog so the lock can be released.
     def notifyClosed(self):
-        if self._result is None:
-            self._result = {}
+        self._result = {}
+        self._visible = False
         self._lock.release()
 
     def hide(self):