iPad Pro, iOS 11.3.1, Lightening Digital AV Adapter and TV.app. I connect the adapter to a TV or projector with a HDMI cable and it KILLS the audio (headset) from the iPad. Apple senior advisor verified the problem and sent it to engineering. Since that's probably a dead end I'm looking for another cure. This has ended my use of a projector for meetings. Any suggestions for a work around?