[BUG] Claude Desktop v1.3109.0 (MSIX) — Code tab crashes on load (Windows)

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?

After clicking the Code tab, the app briefly shows a "What's your next schedule?" UI (calendar/schedule loading screen) and then crashes within a few seconds. The window closes completely.

What Should Happen?

Environment

• App version: Claude Desktop 1.3109.0 (MSIX: Claude_1.3109.0_x64__pzs8sxrjxfjjc)
• Install path: C:\Program Files\WindowsApps\Claude_1.3109.0_x64__pzs8sxrjxfjjc
• OS: Windows
• Install method: Downloaded .exe installer from claude.ai/download (resulted in MSIX install)

What's wrong
After clicking the Code tab, the app briefly shows a "What's your next schedule?" UI (calendar/schedule loading screen) and then crashes within a few seconds. The window closes completely.

Steps to reproduce

1. Open Claude Desktop
2. Click the Code tab
3. A schedule/calendar loading UI briefly appears
4. App crashes and closes

What works fine

• Chat tab: works normally
• Cowork tab: works normally

Troubleshooting already attempted

• Sign out and sign back in → crash persists
• Updated to v1.3109.0 (officially marked as resolved) → crash persists
• No Google Calendar or other connectors are connected

Expected behavior
Code tab should load normally without crashing.

Note
This issue persists even after the v1.3109.0 fix that was announced as resolved on status.claude.com. The fix may only apply to Win32 installations, not MSIX.

Error Messages/Logs

Steps to Reproduce

1. Open Claude Desktop
2. Click the Code tab
3. A schedule/calendar loading UI briefly appears
4. App crashes and closes

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Before the update on 20260416

Claude Code Version

2.1.112

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_