

I mean if you use some device MIDI port (be it actual or virtual by USB) in Reason - you can not use it in VST itself or standalone itself because it's already occupied in Reason settings. You can not use one port in more then one application.
MIDI PATCHBAY HARDWARE DRIVER
If you are using ASIO driver with Reason it was always like that in any program. I think your problem (and problem of guy with Moog) is is that you are using or trying to use ports enabled in both applications (your Reason and your editor be it VST or standalone). In the Roland System-1 VST for the MIDI in section, it always shows the various System-1 devices (System-1, System-1 Ctrl) as disabled and doesn't seem to receive. When I add the VSTs for either device, I can send MIDI messages from Keystep and Reason to the hardware devices, but cannot receive MIDI control messages back into the VSTs. Neither VST seems to allow me to use the hardware devices as control surfaces while in reason. I am wondering if anyone else has had these kinds of configuration problems and has suggestions to resolve? So I am not a Reason MIDI expert, but had this previously working some time ago (haven't played with Reason and my hardware in some time, so can only say it was last seen working around the time v10 came out. System-1 hardware is setup as a control surface in the Reason settings, and shows a green check mark, but there are no options for Uno as a control surface. The Uno editor VST always shows "waiting for Uno" message, and doesn't show any changes made on the hardware. I can open the Roland System-1 VST in savihost, and can setup in the MIDI input from both the Keystep, and the CTRL segment of the System-1 as inputs, and the System-1 CTRL as MIDI output, and the VST works at receiving control messages from the hardware back into the VST.

The Uno synth has a standalone editor which doesn't need a host to use, and which works for sending and receiving MIDI to/from the Uno synth. When I load a blank song in Reason and add either VST, I seem to be able to send MIDI messages from the Keystep, through Reason, and to the hardware, which I have a corresponding audio track to receive audio. Both of these VSTs are supposed to utilize the corresponding hardware as control surfaces.

I am also running the Roland Cloud System-1 VST, as well as the IK Multimedia Uno VST. All of these are connected by USB and not any physical MIDI cables.
MIDI PATCHBAY HARDWARE PRO
I have Reason 10.2 running on a Win10 (1809) Surface Pro 4, an Arturia Keystep USB MIDI controller, Roland System-1m, IK Multimedia Uno synth. I am trying to get to the bottom of an issue I have not been able to resolve for some time, and I thought I would see if the minds around here might be able to hep.
