field(Person.class, "doesNotExist"), first 8 lines: org.instancio.exception.InstancioApiException: Error creating an object -> at lab.instancio.CustomiseTest.lambda$unusedSelectorsAreAnErrorByDefault$0(CustomiseTest.java:138) Reason: invalid field 'doesNotExist' for class lab.instancio.domain.Person set(field(Order::status), ..) on an Address graph, first 8 lines: org.instancio.exception.UnusedSelectorException: Found unused selectors referenced in the following methods: -> Unused selector in: set() 1: field(Order::status) at lab.instancio.CustomiseTest.lambda$unusedSelectorsAreAnErrorByDefault$1(CustomiseTest.java:139) This error aims to highlight potential problems and help maintain clean test code. with .lenient() the same call succeeds: true