The iCon devices don't officially support Cakewalk or SONAR, so there's bound to be areas that don't work properly (especially the button mapping).
You should be able to get basic Mackie faders/transport working however.
Any device that doesn't officially support Cakewalk/SONAR should have "Disable Handshake" checked within the Mackie Control Surface Panel (accessed from the Utilities menu):
Like the title says I'm trying to get my iCon iControls device to work as a fader board, but when I try to use it in Cakewalk the DAW doesn't respond to the faders. Is there any way to get this working?
Trying to an iCon iControl to work as a mackie control surface
in Cakewalk by BandLab
Posted
Much obliged, that worked!