iOS11 notifications disappearing from lock screen

I'm having this issue as well. Has nothing to do with Temporary or Persistent notifications. And I haven't found any permanent or temporary fixes for this. I don't think it happens with all apps, but mainly my Messages app... So any text that I get only stays on the lock screen for probably 10 seconds or less and then disappears. And I don't mean, disappears as in the screen goes dark, I mean literally goes away and I've noticed I've missed a lot more texts lately because if I'm not near my phone, I would typically look at the lock screen later on to see if I missed any messages... but now I have to open it all the way up and check from the app... Really inconvenient... I'm surprised they didn't have this fixed with the new patch that came out like two days ago...

Yes - definitely. Have always had this happen though and i think it’s related to times when I had a bad cellular signal. For example, this almost always happens to me when I’m sitting in our basement. The call goes straight to voicemail without it ringing on my end. The text and badge app notification issues are definitely new.

Yes, I guess I could have been more clear (busy times…) – of course that's expected behavior that when I read the messages on my computer (i.e. clicked the conversation in the Messages app on my Mac) they would dissapear from the lock-screen on my iPhone.

But they sure did stay on the lock-screen for about 10 minutes before I went to my Mac and read the messages there. I do have have everything checked in Settings > Notifications > Messages so for me it doesn't seem to matter that "Show in History” is off. May I ask how your ”Options” (at the bottom of the Messages Notification settings) are set? I have ”Show Previews: Always (Default)” and ”Repeat Alerts: Once”.

How long does it take for the messages on the lock-screen on your phone to disappear?

I have the same options - show previews always, and repeat alerts once.

I don't know how long it takes for them to disappear - during the day it's not so much of a problem, because I tend to check my phone as alerts come in. It's only at night, or when I've been away from my phone for a while, that I notice the problem. My lock screen will show nothing, and then later I will unlock my phone for some other reason and notice all of these missed notifications.

So unfortunately I've never "caught it in the act".

Is it happening for all conversations or is it just some?

I can’t reproduce this problem, but I’m really curious what’s causing it. So I think we have to try and narrow things down if possible.

Is it happening for all conversations or does it behave differently depending on the conversation in the Messages app?

For me it happens only when text messages are received while my phone is shut off. When I turn my phone back on the red notification dot shows how many messages were received while it was shut off. Before I even have a chance to touch the message icon the red dot vanishes and any new messages go with it. I’ve experimented with both iPhone users and android users and it’s always the same. I have to leave my phone on 24/7 if I don’t want to miss messages. I’d like to shut it off and be device free sometimes.

Can’t speak on behalf of others, but it’s just the notifications for me. And it never happened before iOS 11.

Later tonight, I’m going to delete my conversation history for this contact (on all 3 devices) and see if the issue recurs again for his messages.

Same here. This all started with iOS 11. I lose the notifications and the messages they represented. I’ve never been able to retrieve any of them. It only happens if I shut my phone off. Conversely, I can never get rid of the missed call notification. That hangs on for days and the only way to remove it is to shut there phone off. Such irony and aggravation!

One more insight on this from my experience. About a half hour ago, I received two text messages from my wife that didn’t show notifications on the lock screen. I replied to her text and got another reply from her a few minutes later that DID show the notification message on the lock screen. I‘ve been wondering if this issue was related to specific people, but this clearly shows that’s not the case. The problem happened - and didn’t happen - for texts received from the same person within 30-45 minutes.

You need to send me the resulting ”sysdiagnose” file to me so I can attach it to the bug report. I don't think it will contain any personal information, but please open it (I guess it's just a text file) and make sure. 🙂

I’ve had this problem since October, 2017 and have spoken to Apple support numerous times. I’ve had varied responses from them including a promise that it will be fixed with the next iOS upgrade and at the other end of the spectrum they tell me it’s a very rare issue. Neither of these is true as anyone in this discussion group will tell you. We all hope for resolution soon but now Apple doesn’t seem to want to even acknowledge the problem exists. As much as I love Apple products, my next upgrade will likely be an Android unless Apple miraculously fixes this problem in the near future. I wish you success and If you are able to find a fix for this please let us know.

Our problem is not addressed in this update "

"Messages in iCloud, which again showed up during the 11.3 beta phase, is also included in 11.4. Now, messages will be completely synced across all devices tied to an iCloud account. Previously, when a new device was set up, no history would be included (unless restoring from a backup) and deleted messages were only deleted on a single device.

Now, any action will apply to all iPhones, iPads, or Macs. It is beneficial for legacy conversations and keeping everything in check.

I'm sorry to hear that. :(

Can you try to create a "sysdiagnose" file and in some way pass it on to me so I can add it to the report I've done with Apple? Instructions here:

https://www.dropbox.com/s/khasu4wnir046jw/Messages_Logging_Instructions.pdf?dl=0

Ok update. I found how to make them temporary or persistent but that doesn’t explain why sometimes they are temporary and sometimes they are persistent especially considering that they were all set at temporary. It’s quite annoying.

I recently upgraded to OS 12, and thought I was seeing this behavior. Now it appears to have been ‘pilot error’. Under OS 10, using my iPhone 5, I would pick up the phone, and activate the screen with the home button. With OS 12 on an SE, I have ScreenAvtivate with Motion. If I go ahead and push home out of habit, the lock screen comes up, flushing notifications. If I do nothing, the screen activates and all notes are there for review. When/if I push home, they are dismissed, and the lock screen shows up.