Since upgrading to 12.9, the Health check throws the following error when running Item 80: FK Constraints with nonmatching column definitions:
"ORA-06550: line 78, column 15: PL/SQL:
ORA-00942: table or view does not exist
ORA-06550: line 78, column 3: PL/SQL:
SQL Statement ignored"
WORKAROUND
If TOAD schema exists, create the following table and synonym in the TOAD schema
STATUS
Issue fixed in version 12.10. The latest release can be downloaded here.