OCI-64782
Missing backups between SCNs string and string for data file string.
Cause
There was a gap in backups provided to the Recovery Appliance. Without the backup, the current backup could not be processed, and the INDEX_BACKUP task remained in ORDERING_WAIT state.
Action
An INCREMENTAL LEVEL 1 CUMULATIVE or INCREMENTAL LEVEL 0 backup of the data file should clear this condition.