In Damus you can see a reply to a note, and to whom the reply is addressed to, but not the note being replied to.
Discussion
Oh. I don't use Damus since Bitlifi wallet isn't accepted somehow. In Plebstr I see all, sometimes it doesn't show some notes in a thread. I guess it's people from different relays. But it happens very rarely.
Can you send a screenshot of what it looks like when a note doesn’t show 🙏