I was sitting in a conversation with only one message. I deleted the message and got the undelete icon at the top of the screen as expected. I hit back to go back to the list of messages. The now empty conversation was still showing at the top of my message list but the undelete icon had disappeared from the top of the screen. Going into the conversation showed no messages of course and also no undelete icon. Going back to the main message list showed the empty conversation as before. The empty conversation disappeared after the 20 second timeout elapsed. While the 20 secpnd timeout is running the undelete icon should not disappear but should remain present. Great app! Thank you so much. My wife and I love your product and have used it for years!!