kmarkley,
Have you found or ironed any bugs around Threshold devices?
I've just found my landing timer was "Active" with count = 1 and offString = sometime last week, but it hadn't expired and was kinda stuck. Thus none of my landing motion sensors were triggering the landing light and it was kinda dark on the way to the bathroom in the middle of the night!
Rebooting your plugin didn't reset the device state either - it stayed at the above, which surprised me - I expected it to clear the timer when I reset the plugin?
Peter