I tried to test my application in the Production mode policy with self-signed apps. I used SignTool to sign my application with the test certificate from Appx Test Root Agency Folder which was successful, but when i tried to run the application it said "This certificate is not valid because one of the certification authorities in the certificate path does not appear to be allowed to issue certificate or this certificate cannot be used as an end-entity certificate." What can be the problem? Here is the link to documentation