I opened a new record after deleting all entity types in my ontology. Why are entity types still available in the record?

A record can only be worked on if at least one entity type is defined. In this case, the record is associated with the last known valid state of the ontology. To fix this issue when it is encountered while working a record:

1. Discard the work.
2. Archive the record.
3. Create a new record for the asset in question.
4. Before clicking to view/work the record, define the ontology in the "Ontology" tab.
5. Use the Ontology Preview feature to review the ontology.