Attached is a pair of fixes to the UPnP XML for the Program Logic plug-in which allows it to work better with UPnP tools such as Device Spy. These two files are the same for Program Logic Core and Timer Switch 2.0 through 2.5 and will should work with any of these versions.
Please see my other pose from earlier today regarding new UPnP tools which make these types of errors easier to find and fix.