[BUG] session preview not working

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

<img width="2040" height="1118" alt="Image" src="https://github.com/user-attachments/assets/ec0ddf38-15c9-4ffb-ab44-7486c354ccaf" />

When I try to resume a session and press P while in the session list I get a screen that shows the session age and number of messages but not the messages themselves.

What Should Happen?

I should see the messages in the session I'm previewing.

Error Messages/Logs

Steps to Reproduce

1. Open claude code.
2. /resume
3. Select a session and press P
4. Observe no messages shown.

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.3

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Other

Additional Information

Kitty terminal + tmux.
Also tested in Terminal w/o tmux.