In a more recent build of Blackhole, MIDI control of the Ribbon and Footswitches was added. In the AU, this required changing the subtype of Audio Unit to a 'Music Effect' from an 'Effect'. Some DAWs ID the plugin using a combination of fields, which include the subtype. As such, an AU 'Blackhole No Midi' is now installed alongside the regular AU, for backwards session compatibility.
