TOAD 12.1 Issues - How do you connect to Oracle 19C Database?

Toad 12.1 has issues connecting to Oracle 19C. Newer versions of TOAD should work, as should 10.5. The below workaround in Toad 12.1 will also work to allow database connections.

Uncheck the 'Audit statements' and click 'OK'

TOAD 12.1 19C Fix