I’am using acf json to share fields between multisite pages.
I have local and remote version. When i create new fields groups on localhost and next copy new json file ( ex. group_5fce0c45da474.json ) to remote server, subfields disappear. I can see subfields in json and also can fill in page, but when i try edit in ACF setting ( Custom fields ) for example add new field – new field replace “old”.
fields in the JSON file will not populate to the site and be available to edit by ACF unless you Sync the field group.