Including the latest versions 6.9.1, Wrong on the all versions for versions comparison. For example: 6.9.1 and 6.80 compared to 6.9.1 will less than 6.80, 6.6 and 6.41 compared to 6.6 will less than 6.41 etc., when the generated package is installed.
Option: Automatically upgrade older product versions.
Note: To resolve this problem, remove the row that contains string AI_NEWERPRODUCTFOUND in Upgrade table in msi file.