Cursor becomes unusable after 1-2 requests

Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Cursor becomes unusable after a 1-2 requests. Browser tab broken on Windows & Mac. Broken regardless of Chrome installation. Installing Chrome does not restore browser functionality. Noticed that the node terminal gets disconnected as well. Cursor remains responsive, but operations like closing Cursor, opening a file, making a request, get stuck in loading. Requires a force close and a restart to fix.

Steps to Reproduce

Tough to pinpoint exactly, but here is what I’m seeing:

  1. Open Cursor with Browser open.
  • Note: Browser does not work, gets stuck in loading state and I can see in my terminal that localhost:3000 was not visited. Not sure why, browser was working fine, but experienced this on Windows & Mac.
  1. Make a request to a model (Composer/Codex) in my case
  2. Make a second request in the same chat
  3. Model gets stuck in first operation “Planning Next Moves”
  4. Cancel it, now cursor is unresponsive. Directory looks like it’s loading something?

Same issue across my M4 Mac + Windows PC. I know for sure that this is not a memory issue, can’t see a significant usage spike in Activity Monitor.

Expected Behavior

Browser loads, requests go through.

Operating System

Windows 10/11
MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.0.52 (Universal)
VSCode Version: 1.99.3
Commit: 2125c48207a2a9aa55bce3d0af552912c84175d0
Date: 2025-11-03T17:32:51.928Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 24.6.0

For AI issues: which model did you use?

Experienced both GPT-5-Codex & Composer

For AI issues: add Request ID with privacy disabled

This doesn’t load either.

Does this stop you from using Cursor

Yes - Cursor is unusable

2

Hey, thanks for the report. This is a critical issue affecting multiple subsystems. Let’s gather diagnostic info to find the root cause.

Please do these steps:

  1. Network diagnostics:

    • Cursor Settings > Network > Run Diagnostics
    • Share the results

  2. Disable HTTP/2:

    • Press CMD/CTRL + ,
    • Search “HTTP/2”
    • Enable “Disable HTTP/2”
    • Restart Cursor

  3. Check extensions:

    • CMD/CTRL + Shift + P > Developer: Open Process Explorer
    • Send a screenshot of CPU/memory usage

  4. Test without extensions:

    • Run: cursor --disable-extensions
    • Does the issue still occur?

  5. Console errors:

    • Help > Toggle Developer Tools
    • When the IDE freezes, open the Console tab
    • Send screenshots of any errors

Also helpful:

  • Does this happen in a fresh chat or a new project?
  • Screenshots of the stuck “Planning Next Moves” state and the unresponsive directory view

Note:
Similar GPT-5 model queue delays can look like hangs, but in your case the entire IDE stops responding.