In erwin Data Governance I login as a Data Steward created a Business Glossary diagram, here is what I did:
Business Glossary -> Diagrams -> Add (+) -> Type =Entity Relationship Diagram -> Save.
Save success, but the diagram just disappears, not showing up. Why?
This is because there is no data selected.
Search for Object, enter Value or click on Search
Select the dataset names, click Save. go to Diagram, the Diagram is showing up.