The patch probably won't fix your problem, but you should still update.
Did you enable MIDI output for Catanya ?
Below is an excerpt from
this support page.
To enable VST MIDI input and output ports
Some VST audio effects and instruments can generate MIDI events. These plug-ins expose MIDI input and output ports. When inserting such a VST plug-in, no MIDI ports are exposed by default, and no Synth Rack entry appears in the Browser.
If you wish to utilize MIDI input or output for a supported VST plug-in, you must explicitly enable the ports in SONAR. SONAR lets you enable MIDI input and output ports for any MIDI capable VST plug-in.
1.
Double-click the VST plug-in in an effects bin to open the plug-in’s property page.
2.
Click the VST Preset Options dropdown menu and select one of the following options:

Enable MIDI Input. When enabled, the VST plug-in shows up as an available MIDI output destination in the project.

Enable MIDI Output. When enabled, the VST plug-in shows up in the Browser’s Synth Rack, and the corresponding ports are exposed to SONAR..
Note: If you enable a MIDI output port, a corresponding MIDI input port is also enabled. However, you can enable a MIDI input independent of the output.

The Enable MIDI Input and Enable MIDI Output menu commands are unavailable if the VST plug-in doesn't support MIDI input or output.
For more information about adjusting VST plug-in settings, see the Cakewalk Plug-in Manager online Help.