Hi,
I have a very strange problem - Apex 19.2: create master-detail page by wizard. When insert one row into master (without save), and add one or more records into detail region after press Save button Apex show me error: "ora_sqlerrm: ORA-06502: PL/SQL: numeric or value error: character to number conversion error".
I try with some Productivity app, but get same error (into apex.com or locally installed: Oracle 18c XE, Apex 19.2, Rest Data Service 19.2).