Can't get USB PC to USB host to work

[Raphie]

I'm trying to migrate from MioXL to MRCC.
Currently setting up my DAW mapping

PC IN to DIN OUT works fine
Using PC virtual port 1 (named MRCC in DAW)
I push the PC left button (green)
Select virtual port 1 (highlights green)
Select the MIDI OUTS 
send data over the right channels and everything works

PC IN to USB B out, doesn't work
Now, I connect a Moog One via USB to USB B > USB light > GREEN
Again I select PC Left button
This time I choose virtual port 2 (or MIDIOUT2 (MRCC) )
I select the right USB B button (turns blue)
I play on the right midi channel in DAW pianorol
nothing arrives at Moog One

Moog works fine when connected to MioXL via USB

Any suggestions? where am I going wrong?