Session replies render as formatted text
The session transcript was printing raw markdown: literal hash marks for headings, asterisks around bold text and stray horizontal rules.
The models write structured markdown by design, and the artifact and content pages already rendered it. Now the session view does too.
Headings, lists, tables, bold, links and code blocks all render properly, while you are streaming and after the reply lands. Your own messages stay exactly as you typed them.