I'm having the same issue, with Xcode 11.7 on macOS Catalina, doing a simple archive and upload to App Store

If the desired output is for the formatted string to always have two decimal places, I guess you would need formatter.minimumFractionDigits = 2

Hey @Abhistin, any luck finding what is causing this issue for you?

Found the solution for my scenario, the app was quarantined, this fixed the issue: xattr -r -d com.apple.quarantine ./XXXX.app