[BUG] CoWork Freezes - Authentication error

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?

I cannot access the Cowork in Claude Desktop despite having an active Team account. After i type a message in Cowork, authentication consistently fails, Claude Desktop Freezes and i have to quit the app.

Steps Already Tried via Fin AI Agent:

Multiple complete sign-outs and app restarts
Unlocked Mac Keychain using security unlock-keychain command
Turned off VPN
Verified system clock accuracy
Reinstalled desktop app
Reinstalled Claude Code

Confirmed Team account is active and should have Cowork access

What Should Happen?

I type a message in CoWork and get a response

Error Messages/Logs

Steps to Reproduce

1. Open Claude Desktop
2. Select CoWork
3. Type something in the chat box

result: Authenticating, then pin wheel of death

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Sometime around March 1st

Claude Code Version

Claude 1.5354.0

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

This issue has always existed but when it happens i could just quit Claude desktop and try again and it would work