That worked for me too....not sure if anyone else noticed this or not but this bug also effects your use of the control center function when your screen is locked. I sometimes swipe up to use my camera quickly when the screen was locked and that function didn't work either. Changing it to zoomed has worked. I haven't change it back to standard yet to just test out how long it lasts before moving back to standard view.
Been having this same issue as well as others (which I now find are evidently connected) ever since “upgrading” to iOS 11.
1. iMessage and SMS notifications no longer appear on lock screen.
2. Email notifications no longer appear on lock screen.
3. Left swipe no longer activates camera.
4. Intermittent screen freeze on lock screen — all meters, indicators, etc. disappear from top of screen. Sometimes if I just wait a few seconds this resolves. Other times I must unlock the phone to resolve it. And the unlock will only function with Touch ID, the passcode numbers do not appear.
My near vision is not what it once was, so I run my iPhone 6s in zoomed mode all the time. Happy to report that at least for now, changing from zoomed to standard view resolved all of the above issues. Even more happy to report that changing back to zoomed mode did not recreate the issues — they remain resolved (again, at least for now). It should be noted, however, that changing the screen zoom requires a restart of the phone. These bugs all seem connected in some way to the display or refreshing of the lock screen.
Have the same thing with the camera app just showing the blank lock screen when triggered from control center on lock screen. Closing the camera app from multitasking did not bring back the clock though.
Last time I had this issue it was triggered by getting a message notification, not using the camera app. Also, when I pull down the notifications screen when unlocked, I get the same blank lock screen. It's not just a camera issue, it's something deeper where views are getting mixed up.
There is no need to reboot. It can be fixed for a while if you go to Settings->Display & Brightness->View. Set zoomed and back to standard.
I run my 6s in zoom mode all the time. Just setting it to standard mode cleared the problem for me. Then immediately switched back to zoom mode and 63 hours later all is still as it should be.
still happening in 11.0.3
Clock missing from lock screen after iOS 11 update
