I don't get it. Everytime there is a new WordPress update (or an ACF update for that matter) all my AFC custom fields disappear, and I have to rebuild the fields and the data that was in them from a DB backup. This has happened to the last 6 sites I've used this plugin on, and frankly, I am done. Simple Fields is much more stable, the HTML editor is hands above this plugin, and takes 1/2 the time to use (and update). My 2 cents.