Thanks edbro.
Jackie tried to help me in the calibre thread
But with my settings the same as hers or her settings the same as mine
She could not reproduce the problem on her 505
It was her idea to create this thread
https://www.mobileread.com/forums/sho...d.php?t=107857
Do you have a set of series on your 650?
If so when you select all books, and page through, are they in series order?
Thanks