I had an unfortunate incident the other day using the MB Builder plugin – which is a great plugin btw, it saves me much time as an experienced MB-using dev.
It was a combination of 2 bugs or maybe just UI flaws.
1) When editing a field within an existing Field Group, I intuitively hit ENTER to submit the form. The button read "Update". When doing this, the Field Group was somehow saved as a Draft.
2) Because I've actually done this before, I did not want the fields to disappear from the frontend...
So I rushed to click the submit button again, which now reads "Publish". However, the field data did not finish loading yet, and I published an empty Field Group, saving over my existing data – I assume, because the field group (post) ID was loaded, but not the associated field data. I saw a post in the forum here that said fields were missing, and this could be one possible explanation.
I noticed in recent releases the MB Builder takes longer to load the fields. I'm not complaining, since I know a lot is going on. But I have some suggestions:
Just trying to help...thanks for the great plugin.