[BUG] Claude Code v2.1.173: ui completely broken

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 latest tui is completely broken: the agent is writing randomly to different parts of the terminal surface

What Should Happen?

TUI should render normally as in previous versions

Error Messages/Logs

Steps to Reproduce

Just run the latest tui on linux. Terminal used: allacritty

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

v2.1.173

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_