I have something similar setup to this.
If the first item I add to the ticket is from any of the other menus (eg. Breakfast or Lunch from tutorial above) it switches back to the default menu(Main in tutorial) immediately.
If i go back to any of the other menus for second item it will stay on that menu.
It only switches back on the first item added.
Has anyone else experienced this or is it a configuration error on my end?