add a new array/character field to cm3r table. an duplicate column name error appear.

hello All,

my problem is:

in cm3r dbdict.

add a new array/character to cm3r, map the field to new a table(a8 in my env).

click ok in dbdict.

when click SM alerts.

meet below errors:

An error occurred while attempting to update a record (record.update,start)
file:(dbdict) key:(name=cm3r) (record.update,start)
Additional errors have been written to the log. Contact your system administrator (record.update,start)
SQL code=957 message=ORA-00957: duplicate column name (record.update,start)


but actually the new added field is not in dbdict before.