Perhaps I will try to go into more detail with this bump
When you hide your signature and go to edit it after it is hidden, it shows a empty space where you put your code at.
So when it was visible it showed signature image and whatever else you had written in your signature but when you have your signature hidden it does not show that code.
So pretty much I would like the code to show when the signature is visible and hidden so we can edit it without much hassle.
Hopefully it is a easy fix.