animoog not seeing CC when mapping for an Akai MPK61

here is my issue = using animoog on an iPad air, connect via CCK to an Akai MPK61.
I set the midi input to port 1 on the MPK61 .. playing notes and pitch bend work fine - midi is working.
if I try to map a CC to a control … the only controller that is recognized is the modulation wheel.

after a bit of digging with a midi monitor and a few experiments,
it seems that the MPK61 is sending the controller code data on USB midi port 2.
If I switch the midi input to port 2 .. I can map the sliders and other controllers.
but with animoog listening to port 2 .. the keyboard no longer plays .. it’s data is being sent on USB port 1.

any ideas on how to fix this ?
what do I need to do ?

thanks
Michael