My automated updates deployed and installed on 7/7/2015, but the Deployment Status for that Update Group did not show any machines as being Compliant until almost a week later. They were all listed under the Unknown category even when the Client showed as Active. I verified the morning after the update install deadline that all the advertised updates did in fact install and reboot all the servers.
Any reason why there would be such a delay in the Deployment Status? This only started happening after updating to R2 SP1.