[BUG] Navigating to a different Project mid-generation interrupts and discards the active response — Claude Desktop App

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 response is actively being generated in a conversation, navigating to a different Project or thread in the left sidebar interrupts and discards the in-progress response. Upon returning to the original conversation, a message indicates that Claude's response was interrupted.

This makes it impossible to work across multiple Projects concurrently — a natural workflow given response latency. Users must remain on a single conversation until generation completes, effectively serializing all work.

What Should Happen?

Generation should continue in the background regardless of which conversation is currently in focus. The completed response should be present upon returning to the original conversation — consistent with how claude.ai behaves in separate browser tabs, where background tabs continue receiving streamed output.

Error Messages/Logs

Steps to Reproduce

1. Open a conversation in any Project
2. Submit a prompt that doesn't produce an immediate response and wait for generation to begin
3. While generation is in progress, click on a different Project or conversation in the left sidebar
4. Submit a message or simply view the second conversation
5. Navigate back to the original conversation

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude 1.1.3830 (d2af56) 2026-02-20T15:45:56.000Z

Platform

Other

Operating System

macOS

Terminal/Shell

Other

Additional Information

Claude 1.1.3830 (d2af56) 2026-02-20T15:45:56.000Z
Mac OS 15.4 (24E248)