workbench.action.toggleMaximizedPanel command stopped working - returns "command not found" error

Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

The VS Code command workbench.action.toggleMaximizedPanel was working this morning but has now stopped functioning entirely. When
attempting to execute the command via keyboard shortcut, it now returns the error: command ‘workbench.action.toggleMaximizedPanel’ not
found.

This appears to be a recent regression - the command was functional earlier today but is now completely missing from Cursor’s command
registry.

Steps to Reproduce

  1. Open Cursor IDE (version 1.9.0-pre.0.patch.0)
  2. Open keybindings.json
  3. Verify the following keybinding exists (this was working earlier today):
    {
    “key”: “shift+cmd+backspace”,
    “command”: “workbench.action.toggleMaximizedPanel”
    }
  4. Press Shift+Cmd+Backspace
  5. Error appears: command ‘workbench.action.toggleMaximizedPanel’ not found

Expected Behavior

The panel (terminal/output/problems) should toggle between maximized and normal size when the keybinding is pressed, as it did this
morning. This is standard VS Code functionality.

Timeline:

  • This morning (October 20, 2025): Command was working properly
  • Current time (afternoon, October 20, 2025): Command completely non-functional
  • Possible cause: Started acting up after updating Cursor today

Current Keybinding Configuration:

The keybinding is properly configured in keybindings.json:
{
“key”: “shift+cmd+backspace”,
“command”: “workbench.action.toggleMaximizedPanel”
}

However, the command itself appears to be missing from Cursor’s available commands list.

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Cursor Version: 1.9.0-pre.0.patch.0
OS: macOS (Darwin 24.6.0)
Date: October 20, 2025

Additional Information

  • This command is a core VS Code feature and should be inherited by Cursor
  • The command was functional earlier today, making this a regression issue
  • A similar bug was reported in March 2025 but was auto-closed without resolution
  • Attempted workaround (setting workbench.panel.defaultLocation to “center”) caused other issues (terminal opening minimized and out of
    focus)
  • The command may have been removed or disabled in a recent Cursor update

Impact:

This breaks existing user workflows that depend on this command for quick panel maximize/restore functionality via keyboard shortcuts.

Related Issues:

Does this stop you from using Cursor

No - Cursor works, but with this issue

2

Hey, thanks for the report. It looks like a regression in version 1.9.0-pre.0.patch.0 where the workbench.action.toggleMaximizedPanel command was removed from the command registry.

Since this worked earlier today before your update, I’ll pass this to the team. The related issue you mentioned was different (the wrong panel was maximized), while in your case the command is missing entirely.

Please let me know if rolling back to a previous version helps, though I understand that’s not ideal.

3

The latest version update seems to have resolved whatever caused this regression. Command is working great again.