Gridlayout is stupid (or me)

I've had horrible experiences with this framework, I just don't understand where these spacings between the lines of my grid come from.
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El informe solo proporciona una captura de pantalla, una descripción de un espaciado inesperado en la cuadrícula y las versiones de las dependencias; no menciona ningún archivo del repositorio, prueba ni diseño reproducible. Empieza identificando el marcado y los estilos de GridLayout a partir del ejemplo adjunto y, después, reproduce el espaciado con las versiones indicadas de NativeScript y Angular. La tarea estará terminada cuando se haya aislado la causa del espaciado y se haya documentado o verificado el comportamiento esperado del diseño.