If you reduce the transparency (I normally don't use it, saves battery), the unlock animation has a super white swipe up flash because of the notification page going up. It annoys the hell outta me. Apple needs to fix the notification animation. iOS 10 was so much better in that regard. If it ain't broken, don't fix it!!! Why make the notification window look like the lock screen? It doesn't make sense! Get rid of this please in the next update. PS: Turn off Transparency and unlock your phone and you'll know what I mean.