Fill and sign fails, giving " an unexpected error"
When trying to sign a document (with the latest version of DC) (system report below) it will fail and say "The operation failed because Adobe Acrobat encounter an unknown error." From my testing, this only happened when I tried to add a signature on the same page as another fill box. (like a check box or a box where text can be added.) a signature can be added on pages without these elements.