bug - WP 6.8: Meta boxes no longer auto-scroll due to new resize handle

After updating to WordPress 6.8, I observed an unexpected UI change in the post editor. A new resize handle has appeared at the bottom of the meta boxes area, specifically for plugins like SEOPress. This new element causes a regression in the expected behavior, breaking the automatic scrolling of meta boxes.

Issue details:

• Expected behavior: The meta boxes (such as SEOPress) should auto-expand and allow scrolling to view all settings.
• Observed behavior: The meta boxes no longer auto-expand. I now have to manually resize the area to access the hidden content, such as SEO settings.
• Affected version: This issue was introduced in WordPress 6.8 and was not present in 6.7. I believe this change is related to the new core/editor update in WP 6.8, rather than a conflict with themes or plugins.

HTML Element Inserted:

<button role="separator" aria-valuenow="10" aria-label="Drag to resize" aria-describedby=":r9:"></button>

Steps to reproduce:

Update to WordPress 6.8.

• Go to the “Add New Post” page.
• Scroll down to the Meta Boxes section (e.g., SEOPress, ACF).
• Notice the appearance of a resize handle () at the bottom of the meta boxes.
• Observe that the auto-scroll functionality is no longer working as expected.
• Attempt to manually drag the separator to reveal hidden meta box content.

Environment info:

• WordPress Version: 6.8 (issue), 6.7 (no issue)
• Theme: Mismo
• Plugins: SEOPress
• Browser: Chrome 123, Firefox
• OS: Windows 11, Desktop
• Site for Testing: /
• Gutenberg Plugin: Not installed

Additional Information:

• I have tested with all plugins deactivated except SEOPress and have confirmed that the issue persists.
• The theme used for testing is Mismo, and the issue was not present in WP 6.7.

Checklist:

• I have searched existing issues in the repository.
• I have tested with all plugins deactivated except SEOPress.
• I have confirmed the theme type used: Block / Classic

After updating to WordPress 6.8, I observed an unexpected UI change in the post editor. A new resize handle has appeared at the bottom of the meta boxes area, specifically for plugins like SEOPress. This new element causes a regression in the expected behavior, breaking the automatic scrolling of meta boxes.

Issue details:

• Expected behavior: The meta boxes (such as SEOPress) should auto-expand and allow scrolling to view all settings.
• Observed behavior: The meta boxes no longer auto-expand. I now have to manually resize the area to access the hidden content, such as SEO settings.
• Affected version: This issue was introduced in WordPress 6.8 and was not present in 6.7. I believe this change is related to the new core/editor update in WP 6.8, rather than a conflict with themes or plugins.

HTML Element Inserted:

<button role="separator" aria-valuenow="10" aria-label="Drag to resize" aria-describedby=":r9:"></button>

Steps to reproduce:

Update to WordPress 6.8.

• Go to the “Add New Post” page.
• Scroll down to the Meta Boxes section (e.g., SEOPress, ACF).
• Notice the appearance of a resize handle () at the bottom of the meta boxes.
• Observe that the auto-scroll functionality is no longer working as expected.
• Attempt to manually drag the separator to reveal hidden meta box content.

Environment info:

• WordPress Version: 6.8 (issue), 6.7 (no issue)
• Theme: Mismo
• Plugins: SEOPress
• Browser: Chrome 123, Firefox
• OS: Windows 11, Desktop
• Site for Testing: https://facla.ro/
• Gutenberg Plugin: Not installed

Additional Information:

• I have tested with all plugins deactivated except SEOPress and have confirmed that the issue persists.
• The theme used for testing is Mismo, and the issue was not present in WP 6.7.

Checklist:

• I have searched existing issues in the repository.
• I have tested with all plugins deactivated except SEOPress.
• I have confirmed the theme type used: Block / Classic

• bug
• wp-debug

Share Improve this question edited May 4 at 23:13 Wongjn 89322 silver badges88 bronze badges asked Apr 16 at 19:20 Daniel LăcătușDaniel Lăcătuș 1111 bronze badge 2

• 5 If you're reporting an issue with WordPress itself, you should do so on their Trac site. – Pat J Commented Apr 17 at 2:50
• You may be experiencing this known issue which is set to be included in WP 6.8.1 release. – Wongjn Commented Apr 24 at 13:37

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1 Answer 1

Sorted by: Reset to default 2

Has a Temporary CSS solution. I hope WordPress at least makes this optional so users can disable it if they want to.

Add this to functions.php

add_action('admin_head', function () {
echo '<style>
.edit-post-meta-boxes-main.is-resizable {
  height: auto !important;
  min-height: 100% !important;
  max-height: 900% !important;
  overflow: visible !important;
}
ponents-resizable-box__container.editor-resizable-editor {
  height: auto !important;
}
.editor-visual-editor {
  overflow: visible !important;
}
.edit-post-meta-boxes-main__presenter {
  display: none !important;
}
:root :where(.editor-styles-wrapper)::after {
  height: 10vh !important;
}
.block-editor-iframe__scale-container iframe {
  min-height: 920px;
}
</style>';
});