Hexcellent. 
I had not been closely following this topic and had left it to the evidently good advice that everyone was giving regarding debugging. Reading the topic now, though, it seems to me that such debugging, while valuable, might be premature, since it seems that the fundamental problem is still:
So… Let’s establish whether KM can receive anything from something.
I see multiple references from the OP to the concept of sending MIDI to ports. In a recent discussion, @Nige_S and I agreed that the term “broadcast” was an appropriate way for thinking of most traditional uses of MIDI. For example, a MIDI keyboard outputs (“broadcast”) a message and that can then be received by any MIDI input that is using the same port and channel.
Therefore a message can be sent out on a specified port (or ports), but it is not sent to a particular input. (This is separate from any questions of what terms and concepts may apply to routing within Bome MIDI Translator).
If a KM macro has been set up to listen to receive MIDI, the first thing to check is that it can. If no MIDI that is output by BMT is received, plug in a MIDI keyboard or other straightforward MIDI device into the Mac instead (probably needless to say, via USB or a MIDI interface). Can OP get the macro to respond to that?
I think that needs to be established before the problem can be looked at further.