Ok, that makes more sense. It is 0 indexed. But I have 1 added to it in some places for display. If it says 0/1, then I am missing changing it to 0 since the default is -1. So you are getting (-1 + 1 = 0) and it should be (0 + 1 = 1) which are different pages to it.
This is something I should be able to find.