Clearing an acknowledged alert would potentially cause the alert to retrigger if the condition that caused the alert still exists, which most alerts are typically designed to clear when the condition is resolved(depending on your alert trigger/reset condition design). I would suggest for any resources to filter acknowledged alerts or uncheck the show acknowledged alerts box and in the alerts page, you could click on the more button to get the page behavior option and select to hide acknowledged alerts.
The condition here is like once anyone acknowledge any active alerts from active alert window, it disappear from there and moved to alerts main page as acknowledged. Only way to return the pop up active alert, to clear it that we are expecting to be done automatically.
