- fixed a bug in the FlatCAMGerber.on_mark_cb_click_table() method when moving a Gerber object

- added a way to remember the colors set for the Gerber objects; it will remember the order that they were loaded and set a color previously given

appObjects/FlatCAMGerber.py

@@ -1042,7 +1042,11 @@ class GerberObject(FlatCAMObj, Gerber):
 
         self.marked_rows[:] = []
 
-        aperture = self.ui.apertures_table.item(cw_row, 1).text()
+        try:
+            aperture = self.ui.apertures_table.item(cw_row, 1).text()
+        except AttributeError:
+            self.ui_connect()
+            return
 
         if self.ui.apertures_table.cellWidget(cw_row, 5).isChecked():
             self.marked_rows.append(True)