Learn Mode in EQ3 plugin not working

I am trying to use the rotary encoders of a M-Audio Oxygen8 to control the frequency levels of the EQ3 7 band plugin. I know that the Oxygen is properly setup because the Midi message window in BFD3 plugin correctly shows a CC message increasing from 0 to 127 when I rotate the knob.

However, when I select LEARN from the EQ3 and rotate the same knob, nothing happens.

Any idea what to do?