USB MIDI IN: 1 Only?

[Keytar Paul]

My Vortex Midi Wireless works flawlessly with no perceptible delay during performance monitoring of a Midi Instrument Track. I am using either a behringer Q802 USB mixer or a behringer UCA202 interface for audio. Both the midi wireless receiver and one of the I/O s are plugged straight into an OTG USB with a multiplug and it ALL WORKS BEAUTIFULLY!!

But it doesn't matter which midi channel the keytar is sending - any track that is "armed" is going to play. OK for recording - not so great for performing live. IS there a way around this?

Thanks for an AMAZING APP!

Paul