First of all kudos for building such an awesome plugin!
Right now, I have setup a single field in which I have a lot of sub fields but I have run into a situation where any more changes are not being saved.
If I try to add more sub-fields, that gets discarded. Even any change to the “Button label” doesn’t work. If I duplicated the field, that doesn’t get saved either. One thing that I found was if I add a subfield in between somewhere and not at the last of all the sub-fields I have, it does get saved but then the very last subfield gets deleted, which makes me think I am running into some kind of limit here.
Please suggest what to do! I am not using any other plugin other than ACF core + ACF Flexible Content Field on Twenty Twelve theme.