[BUG] Cowork task window does not open on Windows — task shows "waiting for input" but clicking does nothing

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?

When a Cowork task is running and reaches a state where user input is required, the task appears in the Active tasks list and a Windows notification appears saying "Claude is waiting for your input." However, clicking the notification or clicking the task in the Active tasks list does not open any task window or conversation view. The taskbar icon turns orange but no window appears.

What Should Happen?

Clicking an active task or its notification should open a conversation/task window where the user can respond to Claude's question.

Error Messages/Logs

Steps to Reproduce

Open Claude Desktop on Windows, switch to Cowork tab
Select a folder (C:\...) via "Project or folder"
Paste a multi-step task description and press Enter
Task appears under Active tasks and starts running
Windows notification appears: "Claude is waiting for your input"
Clicking notification → taskbar icon turns orange, no window opens
Clicking task in Active tasks list → no window opens

Killing all claude.exe processes in Task Manager and restarting → same result, task gone from history

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

Version 1.15962.1 (1e236d)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

This is a Claude Desktop Cowork bug, not a Claude Code CLI issue. I am not using a terminal. The Cowork task was started via the Cowork tab in Claude Desktop on Windows 10. Gmail MCP connector was active. The folder selected was a local Google Drive sync folder.