A deleted message
They wrote it and deleted it a minute later, before you could read it. Flashback didn’t miss it: the original text or media, in the bot’s card and in the archive inside Telegram.
The bot’s card for a deleted message. The contact sent it at 14:02 and deleted it at 14:05; the card quotes the original text and has a button that opens it in the archive.
Message deleted · Contact
Sorry, I can’t make it tomorrow. Shall we meet next week?