I use a couple of Logos apps (Bible! and Verbum) for preaching - using a split screen with a Bible in one part of the screen and a notes document in the other. I use both apps as I set up one for the morning service and another for the evening.
As I will often be working through a biblical book and my notes are sorted by bible reference, the relevant note for the day is normally towards the bottom of the notes document and that is how I leave the app setup. An example (using Verbum - 4.3.0) is shown below:

As you can see (shown from the task bar) the notes document is positioned to just above the note on Psalm 97:1-2.
However, if I have not been using the app for "some time" when I go back to it the notes document is repositioned at the top as shown below:

"Some time" is difficult to define. I notice it most Sunday when I set up the ipad in the morning (around 9am) and then come to use the app in the evening (around 6pm). If I just leave the app for a short while (maybe 30 minutes) and then come back to it the position in the notes file is still as I left it.
Any thoughts on this appreciated.
Thanks, Graham