Description

This is at the backend admin view when I try to edit the page.

TypeError: Class constructors cannot be invoked without 'new'
at gt (https://siteurl.com/wp-content/plugins/gutenberg/build/vendors/react-dom.min.js?ver=18:1:45667)
at js (https://siteurl.com/wp-content/plugins/gutenberg/build/vendors/react-dom.min.js?ver=18:1:120123)
at Sl (https://siteurl.com/wp-content/plugins/gutenberg/build/vendors/react-dom.min.js?ver=18:1:88331)
at kl (https://siteurl.com/wp-content/plugins/gutenberg/build/vendors/react-dom.min.js?ver=18:1:88259)
at bl (https://siteurl.com/wp-content/plugins/gutenberg/build/vendors/react-dom.min.js?ver=18:1:88122)
at sl (https://siteurl.com/wp-content/plugins/gutenberg/build/vendors/react-dom.min.js?ver=18:1:84974)
at dl (https://siteurl.com/wp-content/plugins/gutenberg/build/vendors/react-dom.min.js?ver=18:1:85354)
at Nn (https://siteurl.com/wp-content/plugins/gutenberg/build/vendors/react-dom.min.js?ver=18:1:32432)
at https://siteurl.com/wp-content/plugins/gutenberg/build/vendors/react-dom.min.js?ver=18:1:91665
at El (https://siteurl.com/wp-content/plugins/gutenberg/build/vendors/react-dom.min.js?ver=18:1:91670)

Step-by-step reproduction instructions

1. Install the latest 21.1.0 version
2. Go to the admin panel
3. Edit any page which is using Gutenberg already.

Screenshots, screen recording, code snippet

Environment info

No response

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