- fixed bug that crashed the app after creating a new geometry, if a new object is loaded and the new geometry is deleted and then trying to select the just loaded new object

- made some GUI elements in Edit -> Preferences to have a minimum width as opposed to the previous fixed one

FlatCAMObj.py

@@ -183,7 +183,7 @@ class FlatCAMObj(QtCore.QObject):
         try:
             self.app.ui.selected_scroll_area.takeWidget()
         except Exception as e:
-            self.app.log.debug("Nothing to remove")
+            self.app.log.debug("FlatCAMObj.build_ui() --> Nothing to remove: %s" % str(e))
         self.app.ui.selected_scroll_area.setWidget(self.ui)
 
         self.muted_ui = False