I have a php warning when I insert an image upload in my post type. With, Single image, it returns "Warning: array_merge(): Argument #1 is not an array in /app/yesmycar/wp-content/plugins/meta-box/inc/fields/media.php on line 71
"
With Image select, it returns Warning: Invalid argument supplied for foreach() in /app/yesmycar/wp-content/plugins/meta-box/inc/fields/image-select.php on line 32
Thanks a lot for your bug report. I've fixed the issue with cloneable single image here. The notice for image select is because you haven't add any options for the field. Please see this docs.