This article provides a workaround to resolve the identified error condition.
Unable to export report data on JSI portal
Most web browsers block pop-up windows by default. When exporting a report, the download is triggered through a pop-up, which gets blocked and prevents the report from being saved.Enable pop-ups for the site in the browser settings to allow the download window to open and successfully retrieve the exported report.If you face any other issues, please contact JUNIPER JTAC Support for assistance.