Hi
This is a pretty annoying "bug" or missing feature. When you set a page to list subpages, it doesn´t remember the sort state. Seems to remember the field being sorted, but not the sort state.
This is pretty annoying, and does not make sense to the editor. Just like the system remembers the fields based on the user, it should remember the state (Ascending/Descending).
Please fix this in a near future release ;)
https://www.screencast.com/t/T7SJmIU8qcL