In my program I am launching a different executable. in order to verify that no one replaced that executable with something else, I check its signature.
Among other things, I am also verifying the certificate that was used to sign the certificate using X509Chain.Build (I am trying to build it on both machine and user store)
On one of my test machines I get a partial chain error when I try to build the chain. The issue cannot be reproduce after I close my application and then restart it.
I understand that I get this error because one of the certificates in the chain is missing, but I don't understand how on the next time I try to validate the certificate it's suddenly working. I know that the store is updated automatically with all the required certificates after trying to check a specific certificate, so why the operation fails on the first time? Any advice?