OCI-18747
Server did not send state-signatures piggyback at connection creation for AC/TAC service
Cause
Server is not sending the expected state-signatures piggyback at physical connection creation, for the AC/TAC service. Without this, AC/TAC cannot correctly function.
Action
Ensure that the database service has the FAILOVER_TYPE service attribute correctly configured. Search for any server-side error in the server alert log and Application Continuity trace files. Contact Oracle Support for further assistance.