Hi Long,
Sorry, I've tried your first solution - https://docs.metabox.io/save-wysiwyg-content-post-content/ - but it's not working.
I'm not even trying to get the mediumeditor bit to work at the moment so I don't confuse things.
So on the frontend page I have this:
[mb_frontend_form post_fields="title"]
instead of
[mb_frontend_form post_fields="title,content"]
I've also tried
[mb_frontend_form post_fields="title,wysiwyg"]
as well as the original. But the wysiwyg add's nothing (just title is showing), and using the original with content shows the original form.
I have the code, copied exactly from that page, as a snippet which is running on the front end only.
I've test it is running by putting a die("Here"); in front of each function and the first two are "working", ie die is being called.
But this function isn't:
add_filter( 'rwmb_content_field_meta', function() { ...
The die statement is never called - not when the form is displayed or when it is submitted.
What could I be doing wrong please?
Thanks
John