Instagram stops users from taking screenshots of these messages

Instagram is making big changes to keep teens safe online. The most important change is that people now won’t be able to screenshot from photos and videos that are meant to disappear after being seen once.
Before, you could take a screenshot of these disappearing messages. Instagram would tell the sender, but you could still save the picture. Now, you can’t save these messages, sent as “view once” and “allow replay,” at all.