DND mode is off, and I have timers set to bypass DND mode anyhow.
I am using the default clock app, yes.
Nothing is set to minimized, though I only see the option under the timer notification sub-menu, and none of the others.
I have played with all sorts of toggles, but for some reason it isn't showing on the lockscreen.
Is there anything in Special App Access that would interfere? That is the only other place that comes to mind where I may have toggled something.