Radio buttons black out when applying signature using fill & sign function in Acrobat Reader DC

Hello,

I created a form using Acrobat Pro DC. The form has Text Fields and Radio Buttons. My end users are completing the forms using Acrobat DC. Once the form is filled in, the end user is applying a signature using the fill and sign function. After signing they are selecting save as. Once the form saves, all the radio buttons are blacked and the form is locked so the user cannot fix to reflect the original radio button selection. 

I want the user to be able to fill in the form using the fillable features I've created, as well as, sign using the fill and sign feature in Adrobat Reader DC, and then save the document. After saving I want all data to remain discernable. 

I have done the "Save as Other", "Reader Extended PDF" option already and it didn't resolve my issue. What other suggestions do you have?

<update> The issue where radio buttons black out happens whenever the user signs the form or tries to print the 

form.