I noticed recently (the night of the switch from daylight savings time to standard time) that my CT-101 thermostat isn’t changing out of it overnight setting (heat setting change from 68 to 72). It also appears that the time on the thermostat hasn’t updated to reflect the new time of day. (It still shows as an hour ahead).
I use the 5-2 Smart app to set the schedule. It seems like something is amiss here, since an incorrect time setting shouldn’t cause the temp change to fail completely. If anything it should be happening an hour sooner than it should.
EDIT: I just tried updating the device handler to the version reference just above my post to see if it makes any difference.