Great work, but there is still an error.
I have one selected in the horizontal format Collection (owned), then I choose a different Collection (ordered) and spin the iPad in the vertical format. to the left the right (ordered) collection can be seen, however, the right to keep the old (owned) appear. That is when I tap left on a cover of A collection ordered, he shows me some cover from owend. But not the right film. I hope I could understand.