[BUG] Claude Desktop — app launches (Dock + menu bar) but main window never appears — Intel i7, macOS Tahoe 26.4.1

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 Desktop starts (visible in Dock and menu bar) but the
main window never appears. The app runs silently in the
background with no window, no error dialog, and no crash.

What Should Happen?

Claude Desktop should open and display the main chat window
after launching.

Error Messages/Logs

No logs are written to ~/Library/Logs/Claude — the app 
crashes before logging begins.

System log (via `log show`) shows TouchBar and 
StateRestoration events confirming the app runs, but no 
window is ever created.

Steps to Reproduce

1. Download latest Claude Desktop from claude.com/download
2. Install and open Claude.app on MacBook Pro A2251

(Intel i7, macOS Tahoe 26.4.1)

1. App bounces in Dock, menu bar appears, but no window shows
2. App remains running invisibly with no way to interact

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

N/A — this is a Claude Desktop issue, not Claude Code CLI

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Fixes already attempted with no success:

• sudo mkdir + chmod 755 + chown on ~/Library/Logs/Claude
• Deleted ~/Library/Application Support/Claude
• Deleted ~/Library/Saved Application State
• Deleted ~/Library/Caches and Preferences for Claude
• Fresh download and reinstall 7-8 times
• Cleared saved window state

This appears related to issues #28590, #40336, and #48276
reported by other Tahoe users.