Cannot read property 'ngModule' of undefined

I have the following setup: I like to test the ProfileOverviewComponent and create mocks for all declarables in its module, which is the ProfileOverviewLazyLoadedModule.

 beforeEach(async(() => {
        const metadata = ngMocks.guts(ProfileOverviewComponent, ProfileOverviewLazyLoadedModule);
        metadata.providers.push({ provide: Store, useValue: storeMock });
        TestBed.configureTestingModule(metadata).compileComponents();
    }));

But now the test shows the following error: Failed: Cannot read property ‘ngModule’ of undefined

The ProfileOverviewLazyLoadedModule imports around 15 other modules, which have declarables on their own (that need to be mocked in this case). I think some module lookup t read the metadata of the module might be incorrect?