[BUG] TUI rendering glitches

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?

The TUI is sometimes glitching

What Should Happen?

The TUI should function correctly.

Error Messages/Logs

Steps to Reproduce

1. Use /btw while command is running
2. Dismiss the answer
3. Observe the glitching

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

Version: 2.1.104

Platform

Anthropic API

Operating System

Other Linux

Terminal/Shell

Other

Additional Information

Screenshot:

<img width="1910" height="940" alt="Image" src="https://github.com/user-attachments/assets/010f499a-423a-4fbc-94af-93be7e26ca17" />