Edit Fill & Sign Fields

I recently used Acrobat Pro's "Fill & Sign" feature to fill out a rather lengthy legal document. Some information has changed and I went back into the file to change the document, but Fill & Sign won't let me edit any of the fields I previous added using the Fill & Sign feature.  When I click on the field that I added using fill & Sign, it tries to create a new field on top of the previous one. 

When I try to use the editing tools, none of them are able to edit the fill & sign fields. I can select everything that was originally on the document, but the fill & sign fields appear uneditable. 

Is there any way to edit the fill & sign fields???