[BUG] New Terminal Running Claude Code 2.0.2 Freezes if Another Instance is Already Running in Same Folder on Windows 11

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?

There is an issue with Claude Code version 2.0.2 on Windows 11 where, if a terminal is already running Claude Code in a specific folder, opening a new terminal window in the same folder and starting Claude Code again causes the new terminal to become unresponsive and stuck, preventing any input.

What Should Happen?

When opening a new terminal window in the same folder where Claude Code is already running, starting Claude Code again should launch successfully and remain responsive, allowing user input without freezing.

Error Messages/Logs

Steps to Reproduce

Steps to Reproduce:

1. Open a terminal window in Windows 11.
2. Navigate to a specific folder and start Claude Code (version 2.0.2).
3. Open a second terminal window in the same folder.
4. Start Claude Code again in this new terminal window.
5. Observe that the second terminal becomes unresponsive and stuck, preventing any input.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.0.2 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_