Instruments sending to MIDI ports startup dialogue box

Omg you're correct, I have found where that is happening. Clearly I have used my NORD at some point as a MIDI instrument with that specific interface, and it's just carried over to other sessions. After sussing through my mixer window, I notice that if I select 'all' tracks, it comes up with the following, which is where I ran into the issue you have identified.

All these hidden NORD tracks seem to be the ones in question, and appear in all of my sessions. Any idea on how to get rid of them?

I am familiar with the 'Midi Environment', but I'm not sure what you're referring to with the 'GM Midi Channel' in the mixer. I can see under 'New' that there is an option to add a 'GM Mixer', is this what you are referring to?

Waiiiiiiiiiiit never mind. I figured it out, and I adjusted it in my templates so it doesn't keep happening going forward.

Thanks so much for your help dude, please consider this a metaphorical beer bought for you. Much love.

Hey Eddie,

I tried to find the PreSonus in both and it's not there. As far as I can tell it doesn't exist anywhere in my MIDI setup.