Error 500 when adding a password protected .pptx file to an attachment type attribute

Products

• Clarity PPM On Premise
• Clarity PPM SaaS

Issue/Introduction

STEPS TO REPRODUCE: 

1. Go to Studio > Objects > Project object 
2. Go to the Attributes tab 
3. Create an attachment type attribute or locate an existing one
4. Go to Views > Edit Project Properties > [Layout: Edit] 
5. Add the attribute to the General section 
6. Go to any given project > General section
7. Locate the attachment type attribute 
8. Add a .pptx file 
9. The file gets added and saved
10. Add the pwd protected .pptx file

Expected Results: The password protected .pptx file to be attached. 
Actual Results: Error 500 - Internal Server Error. The server could not retrieve the document due to server-configuration or other technical problems. Contact your site administrator

Cause

This is caused by DE52472

Environment

PPM versions affected 15.6.1, 15.7.0, 15.7.1

Resolution

This is resolved within 15.8

Workaround: 
1. Use a .ppt file format instead. 
2. Do not use password protected .pptx files