I am not certain this issue is specific to this release but it is where I noticed the issue.
When opening the grouping drawer I notice the book count is higher than the actual number of books on my device in the designated CC folder.
I have tried clearing the book database and connecting wirelessly to Calibre via CC, but I believe the issue may have been as a result of manually deleting several book files through a file explorer as opposed to CC.
Actual books: 9
Book Count listed: 12
Edit: Bahh: Apologies for the large image files. First attempt at using tapatalk to include images.