Description

This issue occurs on a multisite network, So on a sub-site when a super admin creates a post and the super admin does not have their user registered in the particular sub-site then on the post editor we are not able to see the author's name.

Step-by-step reproduction instructions

• Login to your WordPress site using a Super admin user.
• Go on a sub-site where the Super admin user you are using does not have its user registered.
• Open a new post or page.
• Check the author in the right panel of the editor.

Screenshots, screen recording, code snippet

Environment info

WordPress Version: 6.5.4
Gutenberg Version: 18.5.0
Theme: Twenty Twenty-Four

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