Hello,
Since this issue appears only when the .EXE package type is selected and the Enhanced User Interface is disabled, the fix is to enable the Enhanced User Interface.
In order to enable the "Enhanced User Interface", you can go in the "Themes -> Settings tab" and select "Always (install, uninstall and maintenance)" option. Enhanced UI will be used when installing the application as well as when performing "Modify" or "Uninstall" from Control Panel.
Also, we will update this thread once this issue will be fixed.
Best regards,
Dan