I inserted some articles in my Drupal 7 site, the body field  doesn't display, the manage display setting is ok, I tried to change the theme.
Even though I still to display it in edit mode.<br>
One thing is that I imported this content type with bundle copy , it's the same Article default content type with some custom fields.
[![enter image description here][1]][1]


  [1]: https://i.sstatic.net/URFGK.jpg