Major error: when using agent mode, it automatically refreshes

[babala (sdf)]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Major error: when using agent mode, it automatically refreshes and redirects to the new agent page, then returns.

Steps to Reproduce

Major error: when using agent mode, it automatically refreshes and redirects to the new agent page, then returns.

Screenshots / Screen Recordings

Operating System

Windows 10/11

Version Information

Version: 2.4.30 (user setup)
VSCode Version: 1.105.1
Commit: 0f8217a84adf66daf250228a3ebf0da631d3c9b0
Date: 2026-02-06T23:20:57.191Z
Build Type: Stable
Release Track: Early Access
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Windows_NT x64 10.0.26200

For AI issues: which model did you use?

Opus 4.6

For AI issues: add Request ID with privacy disabled

321e82b1-c3c3-4680-92f4-7e6adef689ae

Does this stop you from using Cursor

Yes - Cursor is unusable

[deanrie]

Hey, thanks for the detailed report.

A few questions to help with debugging:

1. Did the issue start after updating to 2.4.30, or was it already happening on earlier versions?
2. Does it happen in any project, or only in a specific one?
3. Can you check the extension logs:
   • Cmd + Shift + P > Developer: Open Process Explorer
   • See if anything looks suspicious in the extensionHost processes
   • Cmd + Shift + P > Developer: Show Running Extensions, then share a screenshot of the extensions list

Let me know what you find.

[babala (sdf)]

This bug started with version 2.4.30, and it exists in any project. Earlier versions did not have this issue.

[jaismith]

Hey @babala, are you able to reproduce this error with that MCP server disabled? Trying to reproduce the behavior on our end and have been unable to.

[babala (sdf)]

@jaismith I have reinstalled cursor, but the problem still exists. I have deleted all cursor rules and all mcp configurations. It still suddenly stops as if interrupted during development. You can see this video.

[Abdelrahman_Mohamed]

The chat window briefly appears as if a new blank window was opened for a fraction of a second, then it returns to the current one, and after that, this image appears. This happens while I’m using Opus 4.6 Max and asked it to create sub-agents like itself.

[Cava]

I have encountered the same problem.

[babala (sdf)]

@deanrie @jaismith
I know how it happened.
It seems like triggering the opening of a new agent window and simultaneously opening .plan.md files.

I have closed all .plan.md documents, but these .plan.md documents will automatically open, and I am not using the plan to develop a project at this time.