If you move the truncation point to the end of the primary database transaction log with the pdb_init move_truncpt command, you will have skipped over DDL commands that may have been read by the Mirror Replication Agent to keep the RASD synchronized with the primary database. To resolve a discrepancy between the primary database contents and the RASD contents, do one of the following:
Refresh the RASD with the ra_init force command, which ensures that the RASD is refreshed with current schema information from the primary database for all objects.
Unmark and then mark the object affected by the DDL, provided that you know only one object was affected.