MSIX Packaging Tool (Preview) is now available from the Microsoft Store

If I try to sign the sign the MSIX Package with my Self Signed PFX it fails: [7/26/2018 12:46:08 PM] [Debug] About to start process [7/26/2018 12:46:08 PM] [Debug] - File name: signtool.exe [7/26/2018 12:46:08 PM] [Debug] - Arguments: sign /a /v /fd SHA256 /f "C:\Users\hcadmin\Desktop\MSIX\Sumatra.pfx" "C:\Users\hcadmin\Desktop\MSIX\SumatraPDF-3.1.2-install.msix" [7/26/2018 12:46:08 PM] [Error] signtool.exe failed, exit code = 1 [7/26/2018 12:46:08 PM] [Error] Error occured: Microsoft.Packaging.SDKUtils.ProcessRunner.ProcessRunnerException: Process signtool.exe failed with exit code 1. at Microsoft.Packaging.SDKUtils.ProcessRunner.ProcessRunnerBase.ValidateExitCode() at MsixGenerator.MsixPackageGenerator.RunSignTool(String packagePath, String certificatePath) at MsixGenerator.MsixPackageGenerator.FinalizePackage(CancellationTokenSource cancellationTokenSource) at MsixPackagingTool.ViewModel.Common.ViewModelBase.CreatePackage(Object sender, DoWorkEventArgs doWorkEventArgs) at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument) The Problem is that I cannot enter the password for the PFX Certificate in the Wizard, Please fix this,