[BUG] Claude Code in desktop app not responsive

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?

Claude Code desktop app is completely unresponsive after updating to macOS Tahoe 26.3.1 on MacBook Air M2. The app opens but stays stuck on "Smooshing..." indefinitely and does not respond to any input.

What Should Happen?

Claude Code in desktop app should load normally and respond to messages as usual after the macOS update.

Error Messages/Logs

No explicit error message shown. UI displays "Smooshing..." loading state that never resolves.

Steps to Reproduce

Use MacBook Air M2
Update macOS to Tahoe 26.3.1
Open Claude Code desktop app
Type any message and send
App hangs — no response received

Claude Model

Not sure / Multiple models

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.71

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Environment

• Claude Code version: 2.1.71 (native installer)
• macOS: Tahoe 26.3.1
• Hardware: MacBook Air M2
• Plan: Max

Problem
Claude Code desktop app becomes completely unresponsive after updating to macOS Tahoe 26.3.1. The app opens but does not respond to any input (shown as "Smooshing..." indefinitely).

Steps to Reproduce

1. Update macOS to Tahoe 26.3.1
2. Open Claude Code desktop app
3. Type any message → no response

Expected Behavior
Claude Code should respond normally.

Actual Behavior
App is unresponsive. "Smooshing..." loading state persists indefinitely with no reply.

Troubleshooting Already Attempted

• Restarted the app ❌ still broken
• Reinstalled Claude Code ❌ still broken

Additional Context

• Issue started immediately after macOS Tahoe update
• Terminal-based claude command behavior not confirmed yet