There are no issues on the front end display or backend management, except when there are no images in the gallery. When there are no images, I get the following error message:
Warning: array_map(): Argument #2 should be an array in /var/www/public_html/wp-includes/query.php on line 2164 Warning: implode(): Invalid arguments passed in /var/www/public_html/wp-includes/query.php on line 2164 Warning: Invalid argument supplied for foreach() in /var/www/public_html/wp-content/plugins/acf-gallery/gallery.php on line 335
I can see the code expects something to parse in an array, but there is nothing to go through when the array is empty.
Nothing breaks, but I can imagine this will bother the client. I’d love to know how to get this error out of the post edit screen.