Can't export Jasper Report to PPTX. "Error 401 - User is not registered."

Products

• Clarity PPM On Premise

Issue/Introduction

Unable to export a Jaspersoft Report to PPTX.

Receives message "Error 401 - User is not registered. ERROR The user is not registered on the reporting server."

The user has:

• All the Advanced Reporting Rights
• Is present in Jaspersoft
• Has all Role permission given

Environment

Release: All Supported Releases
Component: Clarity Jaspersoft

Resolution

Have the user clear the browser cache.