[BUG] Claude macOS desktop app stuck in Cowork mode.

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 updating to the latest Claude macOS desktop app: Version 1.1.2102 (c5675a) the app is stuck on the Cowork panel and the tabs to switch to Chat or Projects are not visible. There is no way to access these tabs and get out of the Cowork panel.

I've tried quitting out and restarting and checking for updates as well as toggling the sidebar; no change.

The web interface still works as expected.

See screenshot

<img width="4100" height="3148" alt="Image" src="https://github.com/user-attachments/assets/c1a18574-e23f-4a58-a3ca-38ba12ec7b89" />

What Should Happen?

Tab options to switch modes (Chat, Cowork, Projects) should display in or above sidebar and work.

Error Messages/Logs

Steps to Reproduce

1. Open Claude macOS desktop app
2. App is stuck in Cowork mode; cannot change
3. That's it.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Not sure but previous version

Claude Code Version

1.1.2102

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

<img width="4100" height="3148" alt="Image" src="https://github.com/user-attachments/assets/810ba8ee-9fba-4fdd-a9e6-fb221d8d8eb0" />