DGM-17438
New source pluggable database 'string' has not registered redo data at database 'string' after switchover
Cause
The new standby pluggable database had not received redo data from the new primary pluggable database.
Action
Ensure that recovery was started and is running at the new standby pluggable database. If recovery is not running, use the EDIT PLUGGABLE DATABASE SET STATE=APPLY-ON to start Redo Apply and switch logs at the new primary pluggable database.