Thank you for contacting us! Based on the described scenario I assume the behavior described is reproducible on Android device.
Currently this is a know issue in Listview that prevents from rendering its entire content and restricts the scrollbar. We are working on resolving it in one of our next official releases.
At the moment, I can suggest to set explicitly HeightRequest to the desired height based on the number of items, forcing the Listview to render its entire contents.
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