Just updated our environment to v10.4 last week. All appears to have gone well, however, I have now noticed that when I delete an alarm it doesn't delete or go away. It remains in the Alarm window indefinitely. If I open it the status shows as being unacknowledged, despite having acknowledged it and deleted it.
None of the attributes appear, the Severity shows as "0" and the trigger date shows as 02/05/2036, 02:28:16.
If I acknowledge and delete again, the alarm fails to change state. It just sits there in the queue with the same attributes if I open it again.