I try to acknowledge an alarm in the Alarm Status table, a message is displayed below the table saying that the alarm is acknowledged, but the alarm stays in the table as unacknowledged.
The log file has the message “Received acknowledgement for event that is no longer available.” Also the text in the Display Path for the alarms that cannot be acknowledged don’t match any of the text I am setting for any alarm Display Path properties. Other alarms that have the Display Path I expect can be ack’d.
I suspect these display path text values for the alarms that cannot be ack’d are left over from earlier settings, yet they are being applied to new alarms.
I’m really baffled and customer is not happy. It was happening on Ignition 7.6.4, upgraded to Ignition 7.6.7 and still the same issue. I have tried deleting the alarms file in the Ignition\data folder and no difference. Cleared the Ignition cache, no change. Deleted rows in alarm_events and alarm_event_data, no change.
Any help is appreciated.