I am trying to: Restore custom fields/add new custom fields
Link to a page where the issue can be seen: hidden link
I expected to see: Restored or new custom fields in the field group
Instead, I got: I changed the type of some custom fields from URL to Single Text. When saving the Field Group these fields disappeared as well as 7 other fields. I am unable to recreate these fields as the URL is still in use and when I go into the Post Field Control I can see them in there (Screenshot attached). I can reassign them to the Field Group and they display in the admin area, but when I save the Field Group they vanish again along with any new custom fields.
I see you have created a cusotm field with name "similar-pattern-1" and and "similar-patterns-1".
For each field, you should click on the link "Change assignment" on the post field control list page and assign it to your desired custom field group:
=> hidden link