'Internal Error: Access Violation' message while using 'Generate Schema' in Sagent

Issue

While executing a plan containing more than one Delimited Text File Sink and/or Fixed Width File Sink with the 'Generate Schema' option checked, the following message is encountered:
 
User-added image

Cause

This is a defect before Sagent 6.8.9.

Resolution

UPDATED: September 13, 2019
This defect has been fixed in Sagent patch 6.8.9 so upgrading to this or later release should resolve the problem.