Same issue for me. I have the pages ID'd that have duplicated content but can't find the URL's those pages share the same content with.
In my report I DO NOT have the column of pages it reports as duplicated or a column entitled "Other URLs".
The columns in my report for "Pages with Duplicate Page Content" is as follows:
URL / Page Authority / Linking Root Domains / External Link Count / Internal Link Count / Status Code
Is there another view of the data I'm missing? BTW I'm under Search > Crawl Diagnostics > and Analyze Pages with Duplicate Page Content
