Scheduling stop working for one day

I have the following events scheduled

SmartApp set to turn 9 outside lights on at sunset and off at sunrise
SmartApp Smart Lighting to turn a family room on at sunset and off at sunrise
SmartApp Smart Lighting to monitor a motion sensor and turn a light on if it is past sunset or before sunrise

Everything has been working fine for 3 months. Yesterday the one with the motion detector was turning the light on way before sunset. Then at sunset none of the lights came on. I had to turn all the lights on manually. This morning everything is working fine again.

Why would this happen. Nothing was reset or changed. It just randomly stopped working correctly. Is there a way to debug this?

Was a problem at the server side. Nothing for you to do except gnash your teeth. :rage:

Closed, please use the topic @btk mentioned