Not sure if this is an iOS 12 issue (or 12.0.1 update, which I'm on) or iPhone XS issue, but while parked yesterday trying to film some falling leaves in a park while connected to wireless CarPlay I found all camera modes that take video (video, slow-mo) to be unresponsive on both back and front cameras. Autofocus "pulses" between completely out of focus and sharp rapidly and pressing the record button shows record state for about a second then flips back to static state, no file is recorded or saved. At first I didn't realize it was a CarPlay issue, and thought it was randomly occurring or not, but after observing the behavior only occurred while connected, and testing that while in the car if I disconnected from CP the camera behavior returned to normal. At first I thought it might be a driving safety feature, but would expect a notification screen, not what appears to be a glitch. Also all still image camera functions (photo, portrait, time-lapse) work while connected. Will file a case with Apple, but curious if anyone else can replicate.