I turned sorting off on both the ID and the Name and it worked.
Drawing order matches the layout book.
The only drawback to the auto index is that I'm having to eliminate everything that's not part of the working drawings set from the layout book.
It's my understanding that using subsets will allow selected content in the layout book to not be included in the working drawing sheet index?
If this is true I will try to utilize this feature on my next job.