Ok, so an update, if anyone is following ;). A recent update resolved this issue, and now both forms are being updated with the content on edit. I am still unsure why there are two forms. It is definitely in the theme itself.
Any more thoughts on what I can try or check for to see why my fields are double?
Thanks so much for responding! So when I move off my theme, I don’t have this custom post type anymore. Any other ideas?