Here is the result of debug mode:
Debug info
High enough role to link: yes
Post supports custom fields: yes
Post supports thumbnails: yes
High enough role to broadcast custom fields: yes
High enough role to broadcast taxonomies: yes
Blogs available to user: 1
Plugins that have hooked into save_post:
WC_Admin_Meta_Boxes
delete_get_calendar_cache
twentysixteen_category_transient_flusher
WC_Widget_Cart
WC_Widget_Layered_Nav_Filters
WC_Widget_Layered_Nav
WC_Widget_Price_Filter
WC_Widget_Product_Categories
WC_Widget_Product_Search
WC_Widget_Product_Tag_Cloud
WC_Widget_Products
WC_Widget_Recent_Reviews
WC_Widget_Recently_Viewed
WC_Widget_Top_Rated_Products
WC_Admin_Post_Types
threewp_broadcast\ThreeWP_Broadcast
threewp_broadcast\ThreeWP_Broadcast