So, a couple of extra thoughts:
First, depending on how you have your settings configured, you can direct people to the first chapter or the "latest." If you've got descending order toggled on, that could explain why EP9 has more views than EP8.
I also think your own views count. So if you clicked on a chapter to make sure something looked right, but you didn't click on the previous chapter(s,) that'll add to the discrepancy too.