I have again found a situation where a PLEG failed in the Schedule Properties. In this case the Schedule shows as TRUE at 09:52PM for a state which is only true between 10:30PM to 08:00AM. (Image Attached)
This schedule has operated correctly for a week now without a manual intervention. The Vera running this PLEG had restarted several times today due to changes made in the linked Vera but the changes all occurred during the time the schedule should have reflected FALSE.