Experiencing a similar duplication issue under books marked as owned. Shows 709 but if you change the sort from default it updates to 705. The same three book titles and edition are the duplicates every time. Selecting the carrots for edition and tags causes expansion or collapsing in all duplication versions

I've had this happen on my read books as well. Previously the duplicate was showing as the default version of a book, which was marked as read but without rating and after adding that version to "currently reading" and removing, it has switched to the same duplicate of audiobook with rating. My book count was showing 12 books as well, now it's at 11, correct should be 10

We're taking a look!