Formatting in-text citation brackets (paranthesis)

Hi,

I have a question. I have just downloaded Endotes X7. I am using CWYW with Chicago 16th A output style. I can enter the unformatted references into my document. The problem is that when I go to Endnotes and select ‘Update Citations & Bibliography’ or ‘Configure Bibliography’ the unformatted references simply disappears from the document.

Can anyone please advise me how to rectify this problem - or what I am doing wrong? Thanks, Jo