Rule - new DataStructure entry not generated in lazy loaded form

We have a form with RuleSet where one of the rules generates new DataStructure record lets say in EntityB. It is a rule of ComplexDataRule type.

The relationship is EntityA->EntityB. Generation is invoked by change of EntityA.Field1 that is drop down control.

The form is lazy loaded.

What happens is that when changing EntityA.Field1, no new record appears in EntityB tab of the form.

Running Origam version is 2024.11.1.

Any idea why this happens?

This is by design. Currently, it is not possible to add new records through a data structure rule.

Could you describe your business case? There might be other ways to achieve what you need.