Is there anyone who knows why this is occurring?
It might have something to do with connectivity. There is no cellular service at the far back corner of the cafeteria in the building where I work. My phone will beep at me when I walk through it with a generic notice, but when I take it out of my pocket, nothing is there. I did not see the “connection lost” sign until I eventually understood it was always that location and proceeded through with it in my palm. A few steps later, it reconnected.
Navigating to settings > advanced settings > notification history should display the last few messages you’ve received.
I have been hunting for this for months, so thank you.
This has also happened to me on my A35, and yes, I have notification history enabled. Usually, it is a connectivity notice or other system notification that has been configured to automatically disappear for some reason. For example, if you have configured Edge Lighting notification, the system user interface will send a message that simply says “edge lighting” and disappears instantly if it is triggered.