Problem:
The user has built a page with a map and a view but they do not appear on the frontend.
Solution:
The page was assigned a content template that was empty. Either unassign the content template, or add a single field block that should display the page's body content.
Problem:
The user has a custom code that copy some custom fields from a custom post type to its related posts upon saving. The user looks for a way to do the above for around 9000 posts.
Solution:
A function can be built for this, but I would not recommend so. running this for 9000 posts will definitly hit the server's limits(memory, execution time, etc.). And it would be hard to track what posts were processed correctly and what posts still needs to be processed.
I would suggest doing it manually in batch. Go the custom post type list, change the number of posts per page(20, or 50, or 100) from the screenoptions http://prntscr.com/20xw59i then select all the posts and bulk edit them. Just hit save without changing anything. This will trigger any custom code that is hooked to post_save for those posts.
Based on your server resources, you may run 100s on the same time. You will still need to do it 90 times to complete the 9000 posts.
