Grafana dashboard does not trigger "OK" after an Alert

Grafana version : 4.4.1
Datasource: InfluxDB
OS: CentOS 7.3

Issue: I have configured alerts to be trigger when the value reaches a specific value or when there is ‘no data’. Alerting works fine, but I am not getting ‘OK’ when the state changes back to normal value.

Please let me know if I am missing anything or is it a bug

I verified the log. The log says an OK was triggered. But I do not see OK getting triggered in the graph and nor we received any notification.

Please help