Latest update broke Claude Code IDE plugin

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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Clicking on CC icon right next to tab title shows only some IDE bugs

Steps to Reproduce

Install plugin, try to launch it?

Expected Behavior

Claude Code plugin opens in a new tab

Screenshots / Screen Recordings

Claude Code Plugin fails to launch.jpg

Operating System

Windows 10/11

Version Information

Version: 2.5.25 (user setup)
VSCode Version: 1.105.1
Commit: 7150844152b426ed50d2b68dd6b33b5c5beb73c0
Date: 2026-02-24T07:17:49.417Z
Build Type: Stable
Release Track: Default
Electron: 39.4.0
Chromium: 142.0.7444.265
Node.js: 22.22.0
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.26200

Additional Information

I use it all the time so I’ confident it’s the latest update of Cursor.

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

3

Hey, thanks for the report. By the way, this extension works for me on the latest version of Cursor.

The error message claude-vscode.editor.openLast not found means the Claude Code extension didn’t activate correctly. Try this:

  • Uninstall the Claude Code extension, restart Cursor, then install it again from the Marketplace.
  • Open the Output panel (View > Output) and pick “Claude VSCode” from the dropdown. It may show why it failed to load.
  • If that doesn’t help, start Cursor from the terminal with cursor --disable-extensions, then enable extensions one by one to find a conflict.

Also, do other extensions work fine, or is the issue only with Claude Code?

Let me know how it goes.

4

Today it works again. Not sure what was teh cause, if either Cursorof extension got update or it was some OS-specific issue. Anyway, problem solved :person_shrugging: