Quick Fix lightbulb visible but click does nothing; Cmd+. works (Dart/Flutter)

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Summary

The yellow Quick Fix (lightbulb) icon appears in the editor gutter, but clicking it has no effect. The same Quick Fix menu works correctly via keyboard: Cmd+. (macOS) / Ctrl+. (Windows/Linux).

Environment

  • Cursor version: [fill in: Cursor → About Cursor]
  • OS: [e.g. macOS 14.x / Windows 11 / Ubuntu 22.04]
  • Language: Dart / Flutter
  • Extensions: Dart + Flutter (Dart Code), versions [optional]

Steps to reproduce

  1. Open a Flutter/Dart project in Cursor.
  2. Place the cursor on a widget (e.g. Container) where code actions are available.
  3. Wait until the lightbulb appears in the left gutter.
  4. Click the lightbulb with the mouse.

Expected behavior

Clicking the lightbulb should open the Quick Fix / Code Actions menu (same as VS Code).

Actual behavior

Clicking the lightbulb does nothing. No menu appears.

Workaround

Cmd+. / Ctrl+. opens the Quick Fix menu successfully.

Additional notes

  • Same project in VS Code: lightbulb click works as expected.
  • editor.lightbulb.enabled is set to "on" (display is fine; only mouse interaction fails).

Thank you for looking into this.

Steps to Reproduce

  1. Open a Flutter/Dart project in Cursor.
  2. Place the cursor on a widget (e.g. Container) where code actions are available.
  3. Wait until the lightbulb appears in the left gutter.
  4. Click the lightbulb with the mouse.

Expected Behavior

Clicking the lightbulb should open the Quick Fix / Code Actions menu (same as VS Code).

Operating System

MacOS

Version Information

Version: 2.6.22
VSCode Version: 1.105.1
Commit: c6285feaba0ad62603f7c22e72f0a170dc8415a0
Date: 2026-03-27T15:59:31.561Z
Build Type: Stable
Release Track: Default
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Darwin arm64 24.6.0

Does this stop you from using Cursor

Yes - Cursor is unusable

4

Hey, thanks for the report. This is a known issue. The lightbulb in the gutter doesn’t respond to clicks, even though Cmd+. works. We’ve had similar reports already.

For now, the workaround is to use Cmd+. like you found. A couple questions to help us diagnose:

  1. Does it still happen if you start Cursor with extensions disabled? Run cursor --disable-extensions in Terminal.
  2. Is it only happening with Dart and Flutter, or do you see the same bug with other languages or extensions too?

Let me know about the questions above.