Issue/repro steps 
If you go to the /undread and press ‘Dismiss…’ (then go to dismiss the topics) the popup appears, but nothing immediately shows that the topics have been dismissed as the popup stays open. You have to reload the page for the topics to disappear.
I’m on opera / desktop.
I have too seen this bug myself on iPhone 13 Pro 
This also happens the /new topics as well, not just unread 
Cheers!
probably related to UX: Move top dismiss button from `topics` to `d-navigation` (#26032) · discourse/discourse@5c1147a · GitHub, I’ll investigate
This should fix it, will be live on Meta in a little bit:
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