It's starting to sound to me like a hardware MIDI loop is involved. I see from your signature that you have NI Maschine; I suggest you check to ensure Maschine is not echoing MIDI input.

brundlefly
It's starting to sound to me like a hardware MIDI loop is involved. I see from your signature that you have NI Maschine; I suggest you check to ensure Maschine is not echoing MIDI input.

Ok. I'll check it out next time.

i'm seeing something similar. None = Omni in the selection of input and so i need to select the synth or the track in order for the correct synth to respond to my keyboard (input). would be nice to have None = None so if i'm not triggering notes via an input (e.g. Addictive Drums) and the notes are routed to whatever track is actually set to Omni. I think this is different than in the past versions where None was an option.

I found this None = Omni today to be exceedingly confusing as well (I'm a rare Xx user and new SPLAT LTU). Is there any GOOD or NECESSARY reason for this strangeness?
How 'bout a User Configurable Preference to return "None" to mean, "None", and "OMNI" to mean "OMNI"?

Strangeness. Yes! There's been quite a lot of "strangeness" in my time with SONAR but I look forward to less and less of this "strangeness" as the development continues.

I should've just did this from the jump but anyway... here it is! A video demonstrating my strange little problem.

https://youtu.be/2cOrGXhG4qw

It seems to me the obvious first step in troubleshooting this would be to set the MIDI Track's Input to just one controller at a time to determine which is/are echoing output from other ports (hardware or virtual).

I started doing that (selecting only one controller as an input device) recently... it helps but the problem is still there...

There's an instrument track, if it's selected while I'm exporting the project, echoes the instrument track above it.

This only happens when it's exporting but if I simply playback the project, it doesn't happen.

Why would it do this when I'm exporting but not when I'm playing the project, beats me!

So, I don't know what else to do to troubleshoot this. I'm really confused by this.

I dunno. If it can only be replicated in projects using NI Komplete and/or Maschine, I'm not going to be able to help.

I had a similar issue using NI Komplete Kontrol. MIDI out was enabled in in KK plugin so all input into the KK tracks was being echoed to all omni tracks in focus.

It was perplexing at first until I realised what was happening.