After selecting the Exclude this time period on the selected days... under Schedules (with Start time 00:00:00, End time 23:59:59 and all Exclusion days selected) the CPU reached 100% usage and the interface stopped responding. This only seems to happen when the time is first created or the service is restarting. After a long period, the interface responds again and correctly displays that the timing should never run. Subsequent attempts to view the next run do not slow down.
Customer support service by UserEcho