DIAGNOSIS The thermostat is pulling a schedule from the Honeywell Home cloud server, overriding your local program. This is often due to a past geofencing or "Optimized Start" setting.
FIX On the thermostat, go to Menu > Preferences. Disable "Optimized Start/Stop." Then go to Menu > Schedule and select "Use Thermostat Schedule." Finally, in the Honeywell Home app, go to Settings for this thermostat and turn OFF "Geofencing" and "Adaptive Intelligence."
IF THAT DIDN'T WORK Log into your account at www.honeywellhome.com. Check the web portal settings for any remaining smart schedules. Delete any "Away" or "Vacation" schedules created there.
HEADS UP Changes made in the app can take 10-15 minutes to sync to the thermostat. Make all schedule changes in one place only—either on the device or in the app—to avoid conflicts.