The vendor has published 1 unique mention(s) for this bug: 1. In previous versions of FAS, a new ISignerCertificate object was created for each certificate signing request. Creation of ISignerCertificate objects was found to be a potential bottleneck in some Active Directory environments. In this release FAS re-uses the same object to avoid the bottleneck. Latest urls for this bug: 1. https://docs.citrix.com/us/en/federated-authentication-service/2503/whats-new/fixed-issues.html