In the Enterprise Edition, when you insert an alert in the Alert file, it is automatically set up to run against all System files in the Project. This is because the All System Files checkbox in the Alerts pane is selected by default. However, for a converted Alert file from a prior version, this checkbox is cleared. Unless you select this checkbox, the alert continues to run against only the particular System files specified for it in the System Files pane. For more information, see Alert File.