--- a/eric6/QScintilla/Editor.py	Sat Jul 10 16:35:26 2021 +0200
+++ b/eric6/QScintilla/Editor.py	Sun Jul 18 12:23:03 2021 +0200
@@ -4440,7 +4440,7 @@
             Preferences.getEditor("ShowMarkerMapOnRight"))
         self.__markerMap.initColors()
         
-        self.setLanguage(self.fileName)
+        self.setLanguage(self.fileName, propagate=False)
         
         self.settingsRead.emit()