Turn Off iPad Mic while using an external midi device on Logic for iOS

I use both Logic Pro for Mac and for iPad. I have several plugins (Relic Flow, Relic Waves, Steel Guitar Pro) that can’t be used as internal instruments on Logic for Mac. In my projects I use these as external midi instruments and that works fine. However, to use them on my iPad Logic Projects as external midi instruments, I seem to have to have the microphone turned on, and the input from the external instrument will not show up in any bounces (if I play the project I can hear the instrument, but it is not inputting audio to its track it is playing on the system?).

So far, the only workaround I have found for this is to make a new track with an audio unit instrument on the iPad and copy the midi data to that track. Edit. And then if I want to continue editing in Logic on my Mac delete the old external midi track, make a new external track and copy the data to it. While it works, it is a terribly inelegant workflow and I am hoping someone can point me to a better way to move back and forth between iPad Logic and Mac Logic when plugins can’t be loaded as internal instruments on Mac Logic.