Sonar & CbB share the same "Shared Surfaces" directory, so if it's working in Sonar, it should work in CbB.
A couple of things to try:
1. Try comparing your "MIDI->Playback and Recording" settings between Sonar & CbB, and see if anything is unchecked in CbB that is enabled in Sonar.
2. Select "Mackie Control - 1" from the Utilities menu, and click the "Configure Layout" button. Make sure it's set to control tracks 1 through 8.
3. Try copying TTSSEQ.INI & ctrlsurface.dat from %APPDATA%\Cakewalk\Sonar Studio to %APPDATA%\Cakewalk\Cakewalk Core