I am also have this issue. It looks like it’s just the options that are no longer loading properly with get_field() when loaded via json file. The rest of my fields seem to be working with posts, pages, etc. They are loading in the options page, just not in my theme/plugins with get_field(). If I sync the field it works. I don’t like to sync the fields in production though because I pass acf-json/ through version control.
Let me know if there is any way I can help!
