Hello,
I am no longer able to sort the posts in a multi-select post object field. This only seems to happen when WooCommerce is activated. I’ve tried disabling all other plugins on the site leaving only ACF Pro and WooCommerce activated. The posts in the field look slightly darker in color and the drag and drop sorting feature is no longer there.
WordPress: 4.7.4
ACF Pro: 5.5.12
WooCommerce: 3.0.4
Thanks!
There have been other reports of conflicts with the new version of WC. for example
https://support.advancedcustomfields.com/forums/topic/woocommerce-3-and-orders-cf/
You can submit a ticket here and the developer may look at it
https://support.advancedcustomfields.com/new-ticket/
You should probably also submit this issue to the folks over at WC.