When working with a model in erwin Data Modeler, that has an excessive number of relationships, especially when one or more Entity / Table in the model has 60+ Relationships, the bulk editor may hang for a long time or become totally unresponsive.
There are known performance issues in erwin that are caused by models with one or more Entities/Tables having excessive (>60) Relationships each). This can include performance opening, navigating, and editing models, including features such as bulk editor. A workaround is to create a new blank ER Diagram and launch the bulk editor Wizard from the blank diagram. The bulk editor should now work as normal.
More information about this issue can be found here: