Nighttime Routine Runs but Fails to Set Device

I have a routine called Bedtime that runs (faithfully) each night at 10:30. Besides setting a Mode and turning off lights it should also turn my family room thermostat down to 18C. It never does when this routine is triggered at night.

I look at the log files for this routine and click the link “Bedroom” (see image below) and noticed the “Application State/Last Time” was three days ago. however, when I click the sub link “At a Certain Time” the log indicates the routine ran each night and is scheduled to run again this evening on the planned time.

If I open the ST app and click on the Bedtime routine everything works as expected and the thermostat is set down to 18c. Makes no sense to me. Anyone have any idea what is going on?

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