I'm speaking with Apple support (web chat) about my iphone 8 rear camera causing purple glow around the images. I let them run a diagnostic on my phone and they told me "Upon reviewing the diagnostics on my end, it seems that there is no hardware issue with the rear camera. Possible that it’s a software issue with the camera app." I think that is total BS, but I'm wondering how they would come to that conclusion based on an OTA diagnostic test. Maybe they can determine if the camera "works", but I find it hard to believe they can determine if it is working properly based on that test.