I’m having the same issue with an image field. I’m trying to replace the image with an edited version. The old one is there and displays in both the dashboard and on the site just fine.
Though if I remove it and try to add a different one it is not saved.
I read the other post linked to above but recreating the entire page is not an option (unless that is the only way) cause it is a long page with a lot of details.
