ORA-17369
Replay disabled because it reconnected to instance with different Application Continuity (AC) configuration
Cause
AC is disabled for the current request because the last replay attempt has reconnected to a database instance with AC configuration that is incompatible with the original instance.
Action
Ensure that all database instances reachable via the connect URL have the same or compatible AC configurations. Be careful when downgrading from TAC to AC and make sure all connections are drained during rolling upgrades.