So noticed this at work when I was ‘aiming’ a radar app in the direction of my house and the ‘compass’ indicator was pointing the wrong way. This happened in iOS 11. I am still seeing this in iOS 12. I have an 8+ and my co-worker has the 6S+. Both are exhibiting this behavior. I have tested with Google Maps, Radar Scope and the Compass app. When I turn on Use True North the same issue is there. It literally seems to be ‘aiming’ with the right side of the phone. I have done multiple soft-resets. Anyone else have this issue?