Certificate linked to a "JSON Web Token Template" Authentication Scheme doesn't show up, as the "Certificate Alias List" from the "JWT Authentication Attribute for Signature Validation" shows no value.
The dependency list for the "Trusted Certificates and Private Keys" for the "Authentication Schemes" shows no value (0).
Siteminder 12.8 SP8 CR01
When running Policy Server and AdminUI 12.8 SP8 CR01 and older versions, open a Support case to get a fix for this.
Upgrade the Policy Server and AdminUI to 12.9 SP1 when this one is available, to benefit from fix DE634239.