diff --git a/src/gui_qt/main/mainwindow.py b/src/gui_qt/main/mainwindow.py
index 4a6f92a..d6bac83 100644
--- a/src/gui_qt/main/mainwindow.py
+++ b/src/gui_qt/main/mainwindow.py
@@ -376,10 +376,15 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
                 if wdgt == self.current_graph_widget:
                     if self.ptsselectwidget.connected_figure == gid:
                         self.ptsselectwidget.connected_figure = None
+                        for line in self.ptsselectwidget.pts_lines:
+                            self.current_graph_widget.remove_external(line)
+
                         self.tabWidget.removeTab(self.tabWidget.indexOf(self.ptsselectwidget))
 
                     if self.t1tauwidget.connected_figure == gid:
                         self.t1tauwidget.connected_figure = None
+                        self.current_graph_widget.add_external(self.t1tauwidget.min_pos)
+                        self.current_graph_widget.add_external(self.t1tauwidget.parabola)
                         self.tabWidget.removeTab(self.tabWidget.indexOf(self.t1tauwidget))
 
                     if self.fit_dialog.connected_figure == gid: