Hi,

Does it happen in all cases (I mean all of the 1st alarm notifications), or just occasionally? I think I have the same issue, but not all the time, only in several cases (lets say 2-5 %). I don't have unrestricted-system-ui installed.

However in my case only the visualization switches to the lockscreen. The touch input works according to the alarm notification, so I try tapping the screen from bottom to up, or from the center to down, depending on what button I want to reach.

And what's more, I noticed that N9 stops alarming either when I press one of the volume buttons (this is my preferred method), or when I put the device face down (I just dont like trying to estimate the proper place and speed when I'm sleeping... ).