Hello I ran across a bug for our website. We're run a school newspaper meaning we have over 1700 authors from over the years. Thanks to your plugin we've been able to publish and manage all of these authors.
However as of Version 2.6.2 we noticed that the Author box would not find some usernames no matter what we tried (First Name, Last Name, ID) If I typed in 1613, it would find the user, but it would not find 1621.
Solution was to downgrade to 2.6.1 which did work finding all users. I'd be happy to assist in debugging if you need.