In the Author environment website admin view, pages cannot be sorted by 'Published'.
Published May 14, 2015
In the Author environment's Website admin view, pages can be sorted by the various fields (number, title, name, etc.).
The sort by Published date feature is broken and instead orders by page number (ascending or descending).
This issue is a known problem for the vendor, Adobe.
There is no workaround.
Requests submitted by the online forms will be triaged quickly by the UBCMS Help Desk.
Also, consult the documentation provided by Adobe Day, the vendor of the UBCMS software.
Please note that some of the vendor instructions may not apply and some features may not be available, as the UBCMS has been modified to suit the needs of the UB community.