Dynatrace doesn't open a problem when its closed if a new error is picked up

[johnsnow123]

So we have log_event that has a query. In our Alerting profile we assigned a custom event matching the title of the log_event. 

When the log event is triggered that is when the query picks up a result, we receive a notification and a problem is open.

The problem I'm facing is that, if the log_event finds the results again there won't be any notifications. 

How to configure so Dynatrace sends notifications every 10, 15 or 30 minutes if the log event detects a result?

If the problem is closed and the issue is reoccurs 5 minutes later, we don't see a new problem! How can this be changed?

---

[ChadTurner]

That might be directly tied to your de-alerting sample set. Dynatrace will alert when any baseline/threshold is set, but it will not "Re-Alert" until it has either closed via De-alerting criteria (3 'good' data points for the last 5 polled data points.) or if the issue got worse.