I’ve had that same issue with one of my floodlight cameras consistently (I have two). Sometimes it seems to ‘decide’ not to follow the schedule I have set even though in the app it shows the lighting schedule is set. I have called tech support about this each time and most recently the man I spoke with sent an updated data pack (or similar, I don’t remember the terminology) digitally to the floodlight and it seemed to do the trick, no issues since then. Try calling tech support when it is happening, they were very helpful and understanding, best tech support I’ve ever had to deal with.