As usual, I was not the first in line to upgrade my software and did all of the following last week:
iOS 7.1 to 9.0.2
iTunes 11.1 to 12.1.3
Marvin 2.7.5 to to 2.8.5
The advantage of doing all the changes at once: all my fussing and fuming was confined to only one week.

The now obvious disadvantage: I really don't have a clue which update(s) did what!
My current mystery:
After I bought my iPad Mini a couple of years ago, part of my book fine-tuning in calibre is to resize all book covers to 400x600 pixels. This size worked fine in Marvin on my iPad Mini; all covers nicely filled one page and looked very good.
After the version updates, the very same books that used to look good now spill over onto a second page. They are
too tall for one page!
I now have to resize covers to 450x600 pixels ... and all is good again! I'm doing the resizing and reloading into Marvin when I decide which book I'll be reading next. It's not worth the effort to do all books at once, since the cover issue does not effect reading the book.
Just curious if the change was caused by Marvin, iOS or a combination of the two.
- Has anyone seen the "Book Cover Aspect Ratio Mystery" on an iPad Mini (or full size iPad)?

- Any clue why
increasing the cover
width to 450 makes the cover fit fine?