--- a/src/eric7/EricWidgets/EricSideBar.py Fri Mar 10 18:25:33 2023 +0100 +++ b/src/eric7/EricWidgets/EricSideBar.py Sat Mar 11 11:53:44 2023 +0100 @@ -271,8 +271,12 @@ @param widget reference to the widget to become the current widget (QWidget) """ - self.__stackedWidget.setCurrentWidget(widget) - self.__iconBar.setCurrentIndex(self.__stackedWidget.currentIndex()) + index = self.__stackedWidget.indexOf(widget) + if index < 0: + # not found, set first widget as default + index = 0 + self.__stackedWidget.setCurrentIndex(index) + self.__iconBar.setCurrentIndex(index) if self.isMinimized(): self.__expandIt()