[BUG] macOS 26.3.1, Claude 1.6259.1, "app hangs at launch

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?

upgraded to latest version of Claude desktop. Ever since cant open the app. Icon bounces no windows open. Tried multiple ways to fix including delete and reinstall.

What Should Happen?

Claude should open

Error Messages/Logs

Steps to Reproduce

tried to open the app from dock

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.6259.1

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_