Hi there!
I took a look at your campaign and it seems that we crawled a lot more page of the site this week in general than we did the previous week. Two weeks ago, we crawled about 500 pages and this week the crawl jumped up to 2800. So it isn't that there are more duplicate pages on your site now, it is just that we are able to crawl more pages now than we were before, which led to us finding even more duplicate pages that had not been reported before.
As for why we are crawling so many more pages, it could be for a few reasons. If you made changes to the links on your site, the page hierarchy of the site, or if you remove noindex tags or updated the robots.txt file for the site, those things could all affect how we are able to crawl the site.
I hope this helps! Please let me know if I can help you with anything else.
Chiaryn
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