I've dug down into this, and I can't figure it out.
My Home app "Good Morning" scene shows as on 24/7/365. It is the only scene that does so.
The scene only turns on one Action Group, and that action group changes the "home" variable to home from away in Indigo and turns on one Z-wave light.
My "Good Night" scene does essentially the same thing in reverse, but with a group of lights. It is only momentarily on.
Short of deleting it and recreating it, I can't figure out how to troubleshoot this further.