I am having the same issue since updating to WP 5.9. If I echo $block[‘anchor’], it shows in the editor right after saving, but when viewing the page, or reloading the edit screen again, the anchor is gone. The anchor string is also gone from the “HTML anchor” value in the Block’s Advanced Settings.
Anchor values remain for core WP blocks.
I have the following set in acf_register_block_type: ‘supports’ => array(
‘anchor’ => true
)
And the HTML Anchor text box shows in the Block Advanced Settings. It just does not persist.
I also do not see ‘anchor’ as a property outputting var_dump($block)
I am having the same issue. If WYSIWYG field is used in Gutenberg with position set to ‘Side’, WYSIWYG field is editable at first, but if you select any blocks in the page changing the Gutenberg sidebar tab to ‘Block’ instead of ‘Page’ (taking the WYSIWYG field out of view), and then go back to the ‘Page’ sidebar tab, the WYSIWYG Visual tab is not editable and any content in the Visual tab is gone. However the ‘Text’ WYSIWYG tab does contain its content.
I verified not a plugin or theme conflict by using Twenty Twenty One theme with all plugins deactivated except ACF Pro.
