--- a/Plugins/UiExtensionPlugins/Translator/TranslatorWidget.py	Sat Oct 13 14:19:18 2018 +0200
+++ b/Plugins/UiExtensionPlugins/Translator/TranslatorWidget.py	Sun Oct 14 18:24:49 2018 +0200
@@ -88,6 +88,8 @@
         """
         Private slot to update the language combo boxes.
         """
+        self.__ensureTranslationEngineReady()
+        
         supportedCodes = self.__translationEngine.supportedLanguages()
         enabledCodes = self.__plugin.getPreferences("EnabledLanguages")