On our iPhones (6 and X), the background video quite often appears upside down, which makes it practically impossible to use the phone for AR. This happens at random, and sometimes even killing and restarting the app doesn't help. You have to restart the whole phone to make it work again. The error typically happens if the app has been started and then put to the background in the meantime. But sometimes it is enough to start another AR-based app before and then the video is flipped in an app that will be started after. I hoped that this problem which I first saw on an iPhone 6 would disappear with the latest Vuforia versions, but this isn't the case. On the new iPhone X and the latest Vuforia / Unity combination it is still there.
Background video flipped upside down on iPhone 6 and iPhone X
Can you share the exact Unity + Vuforia version you are using as well as a way we can reproduce this issue in the samples?
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