Creating a new form shows the expected user fields, and changing to expert mode shows the form expected code. Is after saving that form when wrong data is loaded.
what I would like to know is - what if you create a new form and try to add your desired fields and save it.
- Do you still see the same result as you shared?
If yes:
Can you please share link of your form that I should check and access details.
*** Please make a FULL BACKUP of your database and website.***
I would also eventually need to request temporary access (WP-Admin and FTP) to your site. Preferably to a test site where the problem has been replicated if possible in order to be of better help and check if some configurations might need to be changed.
I have set the next reply to private which means only you and I have access to it.