Diagnosis
The IPC uses transparent database tables to store variant tables.Duplicated records are not allowed.

System Response
The table is copied to the knowledge base. Duplicated records arefiltered out.

Procedure
Check the contents of the variant table, and remove any duplicates.
Check in the line number specified that cells with multiple entries forknowledge base generation have been exploded into multiple lines, andthat any duplicated entries have already been filtered out.