MIDI out on Sub Phatty

[dswo]

This evening I was trying to use my Sub Phatty to control another synth that was out of reach. I went through all of the shift-mode MIDI settings, but it wasn't sending any notes. I checked on a couple of other MIDI devices, including a MIDI monitor. What worked: pulling out the MIDI in cable. When I did this, MIDI out sent notes and wheels beautifully. But when I plugged the MIDI in cable back in, it stopped sending MIDI out.

Is there something I can set to fix this? I tried enabling MIDI thru merge (both DIN and USB) but that didn't seem to make a difference.

[till]

Maybe you created a MIDI loop?

[Bald Eagle]

Maybe something is sending local control off.

[dswo]

Thank you for these suggestions.

I don't think it was a loop, since MIDI was terminating with the other synth (a Microbrute, which has no MIDI out DIN). But I checked to see what the Sub Phatty was plugged into: a 2x2 MidiSport. The MidiSport was turned off (to prevent MIDI loops on a different synth, actually), so I turned it on and the Sub Phatty started transmitting notes again.

I'm not sure how to explain the result, but perhaps this will help someone else.