when old existing sessions when moved from Claude.Ai projects to Claude Cowork fails to write to disk

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 am able move old sessions from Claude.ai project to Claude cowork using the Claude Desktop App.
But they don't seem to be able to see the new root folder that is setup on the Claude Cowork project or write to it.

Here is the error I get an error that is fully illustrated in the 'Session ToC skill failing to write to disk.md' file that is uploaded.

They still seems to point to the old root set in claude.ai

What Should Happen?

New session should see the existing folders and be able to write to those folders.

Error Messages/Logs

Steps to Reproduce

1. Use a existing session from Claude.ai project and move it to Claude.cowork project.
2. Try to write files using this session to the project root or any folder.
3. You will get a 'don't have read or write access error'.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude Code version 2.1.278.

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

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