Reply to Learn Function in Traktor not working

I have tried and tried and tried. I use a hercules dj mp3 controller and a korg kontrol49 keyboard. My hercules controller works fine and I can easily use the midi learn function, but my Kontrol49 MIDI Keyboard won't learn a thing. Traktor is registering the keyboard and sees information coming in (the blue control circle illuminates when keys, faders, buttons, or knobs are used) but it will not learn. When I assign a function to a midi channel and certain note or control change in the controller manager and make sure to use the same midi message on the Kontrol but the said control doesn't do a thing, only that little blue circle lights up. I've reinstalled traktor twice, reinstalled the Korg usb driver, etc etc but to no avail. Please help. What am I doing wrong.