[SOLVED] Ghost gate/gltich using MIDI configuration

[Tamanoir]

Hmm, if you only got a sequence on the first column with a note on (like C-3) and a couple of steps later a note off (like late enough that you would normally hear the ghost glitch). Does the ghost note appear then as well?

Yes, the ghost note also appears.

I would in the first place point to the things you connected to the TRS Midi port causing the trouble. And not because they are faulty but maybe a configuration thing.
You don't loop back to the TRS-Input either? 

That's what I thought too. In normal use, here's the configuration.
My keystep keyboard is plugged into the USB host port.

A MIDI cable (jack->din) is plugged into the TRS-A OUT jack.It goes to the MIDI multiplicator. Nothing else.
When I test by plugging a jack (with enough rings to transmit MIDI signals) directly from the expander's TRS-A OUT jack to the MIDI jack of one of my oscillators, the problem also occurs.

In this test, obviously, I can no longer transmit information to multiple oscillators simultaneously, but the glitches are still present when I try them one by one. But I'm sure the problem occurs before even entering the box that multiplies the MIDI signal.