[BUG] + New Session button completely unresponsive in Claude Code Desktop 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?

The + New Session button in the sidebar is completely unresponsive when clicked with the mouse. The button appears visually normal (not grayed out) but clicking it does nothing — no new session is created, no animation, no response of any kind.

Keyboard shortcut Ctrl+N also has no effect. The issue persists after restarting the app.

What Should Happen?

Clicking + New Session (or pressing Ctrl+N) should open a new parallel session in the sidebar.

Error Messages/Logs

Steps to Reproduce

1. Open Claude Code Desktop App on Windows 11
2. In the left sidebar, click the + New Session button
3. Observe: nothing happens — no new session is created
4. Try Ctrl+N keyboard shortcut — also no response
5. Restart the app and repeat steps 2-4 — issue persists
6. Switch between Code tab and Chat tab and retry — still no response

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.114 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

• Subscription: Pro plan
• The button looks visually normal (not disabled/grayed out)
• An onboarding tooltip overlay was shown initially, but the issue persists even after it is dismissed
• Tested in both Code tab and Chat tab — button unresponsive in both views