ORA-16425: RECOVER FINISH cannot be issued when recovery branch string is not the target branch string.
Cause:
RECOVER FINISH failed because a new branch existed on the physical standby database.
Action:
Issue real-time apply recovery and see if recovery can proceed on the new branch by checking if logs on the new branch are applied by recovery. If so, issue another RECOVER FINISH. Otherwise, issue ALTER DATABASE ACTIVATE STANDBY DATABASE.