[BUG] v2.1.104 has a serious bug: after opening **Think** and then returning, the screen layout gets messed up.

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="2184" height="278" alt="Image" src="https://github.com/user-attachments/assets/de6a954f-13f3-4874-9b9b-c9bcf87c7d52" />

<img width="1084" height="674" alt="Image" src="https://github.com/user-attachments/assets/fbceb2f0-d0d5-4dbb-be25-fb9f05f2b1d5" />

What Should Happen?

v2.1.104 has a serious bug: after opening Think and then returning, the screen layout gets messed up.

Error Messages/Logs

Steps to Reproduce

v2.1.104 has a serious bug: after opening Think and then returning, the screen layout gets messed up.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

v2.1.104

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_