It might also be worth noting this GitHub issue logged in the Gutenberg repo:
https://github.com/WordPress/gutenberg/issues/6754
Hi James,
Thanks for your reply. I am unable to set up a test site just yet, but I can confirm that this is definitely happening on 5.6.10 on Gutenberg 2.8.0.
I just rolled back to Gutenberg 2.7.0 and it saved 100% fine.
I will get a live demo up as soon as possible.
S
This fix (taken from another thread and thanks to Hoblin) does a perfect quick and dirty fix for now:
// fix for ACF PRO version 5.20
add_filter('admin_footer', function(){
echo '<script type="text/javascript">jQuery("#screen-options-wrap .metabox-prefs").prepend(\'<input type="checkbox" style=”display: none;">\');</script>';
});
Thank you, you saved me a lot of pain as I had to present a web site training session to my client.
Much appreciated!
I think I am in the same boat. I am using ACF Pro 5.2.0 and WordPress 4.1.1
I have no rules set up on the regular ‘post’ post_type at all, and have checked (and checked again) all other rules, and none apply to posts, yet when I click on a category to assign my post to, the category meta box disappears completely. Re-showing it from the Screen Options panel does work, but it disappears again after selecting another category.