Mobile Portrait view hides grid column names

[vaithu]

Hi,

My code is

DatastoreDataProvider<PropertyBox, QueryFilter> allCustomers = customersService.getAllCustomers();
        allCustomers.addQueryConfigurationProvider(this::getQueryFilter);

        listing = Components.listing.properties(Person.PERSON_ID,Person.FULL_NAME)
                .dataSource(allCustomers)
                .flexGrow(Person.PERSON_ID,0)
                .flexGrow(Person.FULL_NAME,1)
                .withSelectionListener(selectionEvent -> selectionEvent.getFirstSelectedItem().ifPresent(this::viewDetails))
                .withThemeName("mobile")
                .fullSize()
                .frozen(Person.PERSON_ID,true)
                .build();

Portrait Image

Landscape Image

What could be the issue? The DOM parser shows same tag values on both cases.