[BUG] Dispatch entry missing from Cowork sidebar in Claude Desktop (Windows) while visible on mobile

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?

The Dispatch entry does not appear anywhere in the Claude Desktop app on Windows. The mobile app shows the Dispatch onboarding screen normally, which instructs me to complete setup on the desktop first — but there is no Dispatch item in the Cowork tab's left sidebar, or anywhere else in the desktop app. Setup cannot be completed from either side.

What Should Happen?

A "Dispatch" entry should appear in the Cowork tab's left sidebar on desktop, allowing setup to be completed.

Error Messages/Logs

**Troubleshooting already attempted (none resolved the issue)**
- Verified desktop app version matches the latest build on claude.com/download
- Full uninstall and clean reinstall from claude.com/download
- Removed %APPDATA%\Claude and re-logged in
- Logged out and back in; confirmed identical account on both devices
- Confirmed x64 architecture (not ARM)
- Confirmed Cowork sessions themselves run normally on desktop
- Maximized window to rule out sidebar truncation
- No other computer has ever been paired with Dispatch

Steps to Reproduce

1. Open Claude mobile app → Cowork → Dispatch
2. See onboarding screen: "Set up Dispatch on your desktop first" (steps 1 and 2 complete)
3. Open Claude Desktop on Windows → Cowork tab
4. No "Dispatch" entry exists in the left sidebar

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

1.30096.1

Claude Code Version

2.1.229

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

Cowork works normally otherwise — the issue is limited to the Dispatch entry not rendering at all. Possibly related to previously reported Windows sidebar rendering issues (#71536).

Environment

• OS: Windows 11 (x64), MSI laptop
• Claude Desktop version: 1.30096.1
• Claude mobile app: Android, latest version
• Plan: Pro
• Same account signed in on both devices