[BUG] failure to reinstall workspace/ access to cowork

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?

Running into this issue and I can't access Claude cowork.

<img width="910" height="737" alt="Image" src="https://github.com/user-attachments/assets/4806185c-a02f-4dfa-b2cf-00fb283c2264" />

What Should Happen?

I should be able to use claude cowork without any issues.

Error Messages/Logs

("Failed to start Claude's workspace - Download failed")

Steps to Reproduce

Not sure how this started

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude 1.9255.2 (1dc8f7) 2026-05-27T01:57:20.000Z

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_