With loopback MIDI I could set DAWfeed to other states, all MIDI values (0-127) are mapped to all Set values (in your case 25, 0-24), what Overview tab is showing when you receive that CC? It should indicate what AZ Controller is doing, so which state is selected. F.e. if I send 127, DAWfeed is set to "default".
Note that Cakewalk is rather buggy when setting sends outputs, it reorder sends visually, the list of possible values is broken if the project has any plug-in with side chain, etc.