Installshield throws error "New Version already present" for Minor upgrade

Question

We have one product of version 1.14.0019059. But it is not able to upgrade on 1.13.0219038. It throws error "New version is already present. Please uninstall previous version."

I am not able to understand why Installshield is not able to upgrade the product even if there is a minor version upgrade.

We are using Installshield 2018.

Answer 1

https://learn.microsoft.com/en-us/windows/desktop/Msi/productversion states:

The value of the ProductVersion property is the version of the product in > string format. This property is REQUIRED.

The format of the string is as follows:

major.minor.build

The first field is the major version and has a maximum value of 255. The second field is the minor version and has a maximum value of 255. The third field is called the build version or the update version and has a maximum value of 65,535.