Patterns Editor crashes with “Minified React error #130” when creating a new pattern

[manhphuc]

Description

When opening the Patterns editor at https://wordpress.org/patterns/new-pattern/, the editor crashes immediately and shows the message:

“The editor has encountered an unexpected error.”

Clicking “Copy error” shows this React stack trace (Minified React error #130):

Error: Minified React error #130; visit https://reactjs.org/docs/error-decoder.html?invariant=130&args[]=undefined&args[]= for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at rd (https://wordpress.org/patterns/wp-content/plugins/gutenberg/build/scripts/vendors/react-dom.min.js?ver=18:206:306)
at u (https://wordpress.org/patterns/wp-content/plugins/gutenberg/build/scripts/vendors/react-dom.min.js?ver=18:88:149)
at x (https://wordpress.org/patterns/wp-content/plugins/gutenberg/build/scripts/vendors/react-dom.min.js?ver=18:91:16)
at v (https://wordpress.org/patterns/wp-content/plugins/gutenberg/build/scripts/vendors/react-dom.min.js?ver=18:95:81)
at aa (https://wordpress.org/patterns/wp-content/plugins/gutenberg/build/scripts/vendors/react-dom.min.js?ver=18:123:401)
at Qk (https://wordpress.org/patterns/wp-content/plugins/gutenberg/build/scripts/vendors/react-dom.min.js?ver=18:254:196)
at Ri (https://wordpress.org/patterns/wp-content/plugins/gutenberg/build/scripts/vendors/react-dom.min.js?ver=18:195:185)
at Ok (https://wordpress.org/patterns/wp-content/plugins/gutenberg/build/scripts/vendors/react-dom.min.js?ver=18:195:116)
at Nd (https://wordpress.org/patterns/wp-content/plugins/gutenberg/build/scripts/vendors/react-dom.min.js?ver=18:194:492)
at Li (https://wordpress.org/patterns/wp-content/plugins/gutenberg/build/scripts/vendors/react-dom.min.js?ver=18:189:179)

This happens 100% of the time and prevents creating a new pattern.

Already tested:

• Hard refresh (Cmd + Shift + R)
• Clearing browser cache & cookies
• Incognito mode
• Safari and Chrome
• Disabled all extensions

The issue still occurs.

Expected: the Patterns editor loads normally.
Actual: React crashes and the editor never loads.

Step-by-step reproduction instructions

1. Go to https://wordpress.org/patterns/new-pattern/
2. Wait for the page to load
3. The editor instantly shows “The editor has encountered an unexpected error”
4. Click “Copy error” to view the React minified error Add delete button #130 message

Screenshots, screen recording, code snippet

Environment info

• URL: wordpress.org/patterns
• Browser: Safari 17 / Chrome 119
• OS: macOS
• Logged in: Yes (WordPress.org account)
• Reproduced in: Incognito mode, cleared cache
• Gutenberg: Running in the WordPress.org Patterns site

Please confirm that you have searched existing issues in the repo.

• Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

• Yes

Please confirm which theme type you used for testing.

• Block
• Classic
• Hybrid (e.g. classic with theme.json)
• Not sure

[manhphuc]

Additional info:

The crash only happens when the editor is loaded in desktop layout.

• On mobile view or narrow screens (small viewport width), the Patterns editor loads normally.
• On desktop-size viewport (or when rotating a mobile device to landscape), the editor crashes immediately with the same “Minified React error Add delete button #130”.

This means the bug is likely triggered by a component that only renders in the desktop breakpoints of the Patterns Editor UI (grid layout, sidebar panel, inspector controls, or a desktop-only hook).

So the issue is reproducible based on viewport width:

1. Shrink browser width to mobile size → editor works.
2. Expand browser width to desktop size → editor crashes instantly.

This is 100% consistent across Safari and Chrome on macOS and iOS.

[manhphuc]

Here are two screenshots showing the difference between mobile and desktop viewports:

1. Mobile / narrow viewport (works normally)

2. Landscape / desktop-width viewport (crashes instantly)

This clearly shows that the issue only happens when the editor switches to the desktop UI layout.

• Mobile portrait view works normally.
• As soon as the viewport becomes wide enough for the desktop layout (including rotating an iPhone to landscape), the editor immediately crashes with “unexpected error”.

So the crash is likely triggered by a component that only loads in the desktop breakpoints of the Patterns Editor UI.

[t-hamano]

This problem has been fixed in WordPress/pattern-directory#730.