RLBKLOSTTNONLY, ROLLBACK will only create a lost transaction file (database and journal files will not be modified)
MUPIP Information: MUPIP JOURNAL -ROLLBACK displays this informational message at startup if it finds at least one database region with NOBEFORE_IMAGE journaling. In such a case, MUPIP JOURNAL -ROLLBACK can only create broken and lost transaction files (if appropriate) but otherwise not modify the database, journal files, or replication instance files.
Action: No user action required except to confirm that this type of rollback is appropriate and expected.