Can not run agents concurrently

Describe the Bug

I was able to run multiple agents simultaneously, which was saving a lot of time but now I can not. When I switch to another one after sending a prompt to the current one and then come back, I see it has cancelled the generation.

Steps to Reproduce

Have to agent tabs in the editor, send a prompt to the first one, and then switch to the second one for a brief moment and come back to the first one right away. You will see that it has ceased to generate.

Expected Behavior

no matter if I stay active in the agent tab or switch to another one, the generation should not cease, and ideally, many instances should run at once, just like how it was before Cursor 2.0

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.0.43 (Universal)
VSCode Version: 1.99.3
Commit: 8e4da76ad196925accaa169efcae28c45454cce0
Date: 2025-10-30T18:49:27.589Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.6.0

For AI issues: which model did you use?

Does not matter

Does this stop you from using Cursor

No - Cursor works, but with this issue

same problem.

Restarting Cursor helped me btw.