This is not normal. I would suggest deleting the web application, rebooting the servers and re-running the script (it can be ran multiple times with no issues).
To delete the WebApp run "Get-SPWebApplication | ? {$_.DisplayName -eq "Portal"} | Remove-SPWebApplication" in PowerShell.
Ivan
To delete the WebApp run "Get-SPWebApplication | ? {$_.DisplayName -eq "Portal"} | Remove-SPWebApplication" in PowerShell.
Ivan