Oberheim Matrix 1000 or Kenton Pro-2000MKII is not working

[Boris_Ender]

Hi there,

I'm using the AL88-c and have conected my virtual midi from PC to the Bridge. Some of my Instrument reacting but others don't. For example the Oberheim Matrix 1000 or my Kenton Pro-2000 MKII. The Equipment is fine, as when I'm using my RME-UFX MIDI I or MIDI II Connections, the devices react as expected. Can someone support me to figure out what might be the issue? Thank you so much for your help. Kind regards, Boris