I’ve checked some notes, there may be a difficulty When you've got read only tablespaces, then “”BACKUP OPTIMIZATION ON” leads to skipping the backup of such datafiles if there is a backup accessible. here is the output in the failed replicate from backup far too much to paste, cant upload https://beckettdrgqe.slypage.com/33519825/list-expired-backup-of-archivelog-for-dummies