We're using Environment Manager 2.5 with SAS 9.4 M5. I've set up a number of alerts (mainly for available disk space). However, when I select an alert which has been triggered, I can't acknowledge it. I'm able to set it to Fixed. See below from the Dashboard, with the Acknowledge button greyed out. Is this something I have to configure in the alerts somewhere? I couldn't find anything in the documentation.