I am seeing similiar activity's. I have lights go on in the middle of the night when nothing is going on and nobody is up. I was on 3.3.5 and went to 3.3.7. No errors in the error log. No power hit. In the event log, things just happen. It's like there is a gremlin running around and tripping off various random events and status's. In some of the events, a state variable gets changed for no apparent reason, and of course the programming goes from there. These are not time based programs. Two nights ago a 4 way circuit with no variables turned on.