I can confirm that sub pages do not show up in the list regardless of what setting is used in the function call.
This had me foxed for many an hour until coming here to see the same issue reported.
Andy it would also be great to be able to exclude pages being shown as well. For instance i run a local borough website and plan to have mini sites (using categories) related to borough location.
So say we have two borough locations
Location 1
About
Schools
Useful Telephone numbers
Location 2
About
Schools
Useful Telephone numbers
Location 1 & 2 landing pages are categories and will likely show news related specific to that area. About, Schools and Useful Telephone numbers pages related to that location category only.
However with 50+ locations the page structure organisation or, more importantly, the finding of pages to edit when the needs arise, being that the category of a page does not show or is indeed sortable in wordpress admin, becomes quite a problem.
To counteract that i planned on using a page holder
So a page is created as retainer for both Location 1 and 2’s, making every other page a sub page for that location.
Heres the breakdown
Location 1
Retainer for Location 1
About
Schools
Useful Telephone numbers
Location 2
Retainer for Location 2
About
Schools
Useful Telephone numbers
Retainer for Location 1 & 2 will never be displayed on site but allows navigation through the pages admin section a great deal easier.
What do you think ?