WordPress 6.8 – Meta Boxes No Longer Auto-Scroll?

After updating my site facla.ro to WordPress 6.8, I noticed a UI issue in the post editor.

A resize handle now appears below the meta boxes section (used by plugins like SEOPress), and suddenly, the auto-scroll behavior is gone — I have to drag the handle manually to reveal the full meta box content.

This wasn’t the case in WordPress 6.7.

Example setup:

• WordPress 6.8
• SEOPress plugin
• Mismo theme
• No Gutenberg plugin
• Tested in Chrome & Firefox

As a temporary fix, I used the WP Downgrade plugin to revert to WP 6.7 — everything works fine again.

Has anyone else run into this after the update? Is this a bug or an intentional editor change?

Comments

[Julien ✏️]

To fix add this to an admin applied CSS

.edit-post-meta-boxes-main.is-resizable {
  height: unset !important;
  max-height: unset !important;
}
.edit-post-meta-boxes-main.is-resizable .edit-post-meta-boxes-main__presenter {
  pointer-events: none;
}
.interface-navigable-region:has(.edit-post-meta-boxes-main.is-resizable) {
  display: block;
}
.block-editor-iframe__scale-container iframe {
  padding: 40px;
  min-height: 85vh;
}

Here is how you can add a script /css/admin.css from a theme.

/**
 * Enqueing admin styles
 */
function dev_load_custom_wp_admin_style() {
    // load custom admin style for admin
    wp_enqueue_style( 'dev-custom-wp-admin', get_stylesheet_directory_uri().'/css/admin.css' );
}
add_action( 'admin_enqueue_scripts', 'dev_load_custom_wp_admin_style' );

[Julien ✏️]

I have this exact same problem. My site users rely heavily on metaboxes and now when testing the 6.8 I'm seeing that their workspace that is in part in the metabox area of the editor is hidden.
I'm looking into ways to revert to previous behavior : so that the meta box comes after the content of the page, sequentially. Not in a panel that you open with a handle.

This is the kind of UI change that makes me question my future reliance on WP honestly. This is not even listed in the "changes"

[Julien ✏️]

And apparently it's how it is and they don't provide a way to switch modes
wordpress.org/support/topic/remove... 🤦