My Perspective session warns that "No Identity Provider is Configured" when I try to sign in users. However, there is one configured. It's an LDAP provider, with the user source also being LDAP. This is the only provider configured. It works fine for signing into the gateway, but fails in Perspective.
A few possibly relevant gateway settings:
System Identity Provider => LDAP
Designer Auth Strategy => Classic
System User Source => LDAP
Would appreciate any suggestions.