Hi all, this thread has been helpful, despite the inconsistent results in workarounds. I did a Facebook live music stream this past Friday night (2/12/21) and upon the suggestions on this post, I tested the following during the week prior to the stream (start live stream, wait several seconds then plug in external device/mic), and it appeared to work. FYI - I am running my audio via xlr outputs from my mixer to a PreSonus AudioBox iTwo (which has a USB to lightning cable output). About 20 minutes before my live stream started, I re-tested the process with both singer's microphones and acoustic guitars, and it was beautiful; clean, crisp, and clearly the direct signal from my audio interface. I repeated the steps upon starting my live stream, only to find out after my 3 hour performance, that the Facebook live stream was not receiving the direct feed from my audio interface, but rather the room sound from my PA system via the iPad's internal microphone!! Needless to say I was EXTREMELY disappointed as the sound was terrible compared to the direct signal. I do not perform with headphones on (from my iPad), and the iPad is set up about 15' from my performance area, so there is really no way for me to test the audio on the live stream once it's started and 'live', but since my test immediately before the live stream worked, I assumed I was in the clear. Can't begin to discuss how frustrated I am about this issue. A 3 hour performance with terrible sound. So disappointing. :(