I have several light modules which were on a schedule at one time. I have deleted the schedules yet the lights turn on randomly and not necessarily based on the old deleted schedule. They will be off for days then simply turn on. Nothing on the schedule and I can’t figure out why.
One thing to check for is the history in the app. Does it have any entries with the word "triggered" in them. If so this is an event that is scheduled. Something like - "Outside Light On was triggered". If you see these and you don't have any scheduled events you may have to contact support.
If you only have the Turn On/Off event - "Outside light was Turned On", there maybe a remote device setup to toggle the light(s). I would recommend erasing any codes from the light modules. I believe to do this you press and hold the Learn button on the light module until the LED flashes, about 6 seconds.
Note; if you have any remotes devices that should switch the lights you will have to set them up again for each module you clear.