[BUG] Claude Code Terminal Text UI Bug

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?

After long sessions, some text characters within the terminal when using Claude code can become distorted, disfigured and unreadable. See video attached.

https://github.com/user-attachments/assets/26f7fcb0-288e-405e-a96c-68e97f75fe53

What Should Happen?

Readable text.

Error Messages/Logs

N/A

Steps to Reproduce

1. Long session use
2. Bug Encountered

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.143 (Claude Code)

Platform

Other

Operating System

macOS

Terminal/Shell

Other

Additional Information

Using Windsurf IDE integrated Terminal (unconfirmed on other IDEs).