I've been able to reproduce this easily so thought I'd let you know. I know the way to avoid it, too.
In Album Admin, any album, photos sorted by name
Press F5 (to refresh page)
Note the new name appears on wrong photo, and all photo names have been "shifted" to the photo below/above resulting in name of all unedited names being wrong.
Work around - don't push F5. Refresh album by using WPPA navigation in left column.
Not a big deal - unless you have edited a lot before you push F5 and then have to re-edit them all.
Thanks again for a great plug in!