[BUG] URGENT: Terminal rendering completely broken in v2.0.73 - Windows

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?

URGENT: Terminal rendering completely broken in v2.0.73 - Windows

Environment:

• Claude Code version: v2.0.73
• OS: Windows
• Terminal: Command Prompt (CMD)
• Model: Sonnet 4.5

Issue:
Terminal rendering broke TODAY. Was working fine before today.

Text is completely unreadable:

• Characters cut off at line starts
• Random fragments of text appear
• Example: "d." followed by broken sentence fragments
• Cannot read Claude's responses at all
• Makes CLI completely unusable

This appears to be a regression bug introduced in today's update.

Reproduction:
Ask Claude any question that produces a multi-line response.

Screenshot attached: broken-results.jpg

Impact:
CRITICAL - CLI is completely unusable for daily programming work.

Request:

1. Fix this ASAP
2. How can I downgrade to previous working version?

Workaround:
Currently having Claude write all responses to text files since terminal output is unreadable.

What Should Happen?

Request:

1. Fix this ASAP
2. How can I downgrade to previous working version?

Error Messages/Logs

Steps to Reproduce

Do anything that gives back text, and it occurs.

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

v2.0.73 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

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