[ZeroFill]

@Toadling: I don't see the missing single-action list items when changing the perspective in either the active or archive list. It has been sitting there incomplete for some time now (months?).

FWIW, the tasks I'm missing were in a single-action list "Single Items due Today" under a grouped action list "When Time"

I've given up and hoping this was a growing pains now that I've started to use Archiving. I'll report if it happens again. I've been using the app since the free beta period :)