Well, that fixed that issue, THANK YOU! Responding nicely now. My BFD3 had its MIDI Output enabled. Still working through setup with Cakewalk. The S49 responds fine with Komplete Kontrol stand-alone, but still not getting any sound when inserting an instance into the DAW.
UPDATE: Good to go now. Simply clicked my Echo Input button on the KK track, although hearing quite a bit of latency. Not used to these new-fangled keyboards with no analog outs. Typically, I monitor analog outs while recording, to bypass listening to latent midi output inherent in huge projects at 96K. For future projects, I may go back to 48K.