[lloeki]

Sort of the same experience in some specific lighting conditions.

What I found out though is that it's because in such lighting conditions I don't blink, compounded by the fact that if it doesn't unlock I unconsciously keep on not blinking to... see it hopefully unlock! So when this happens I consciously blink and it unlocks immediately, which is kind of cognitively dissonant.

Unknown if that would apply to your situation, YMMV but I thought I'd throw this one out.

There's also a kind of annoying recurring situation where I want to look at stuff on the lock screen but don't want to actually unlock...

I do wish they'd have reintroduced Touch ID in the camera control button sensor (or just in the power button, as for the iPad Air) but I guess cases would cause a problem.