I had started using the "no MIDI send/receive" MIDI type for certain controls, to avoid unwanted MIDI messages e.g. for radio buttons, when the layout is set to "Supercontrols send own values" or in the same layout, when a Supercontrol should just be supercontrolling. But in MIDI Monitor on my computer I see unintentional Poly Aftertouch messages coming together with every intended sysex message. So far my workaround is an according output rule, simply blocking PolyAftertouch, which works fine. Still it irritates me, am I doing something wrong?
By the way I realized that the PA comes on different channels. I had blocked A0, but then is came as A2.
Images
Screenshot 1: a simple knob set to No MIDI send/receive
4 buttons set to No MIDI send/receive, grouped by a knob