在小屏幕上显示未定义的值

Question

在一个小窗口中渲染时，我在Amcharts上得到一些“未定义”的值：

但是同一张图，没有重新加载，如果我将它移到更大的屏幕上，我就正确地得到了值：

为什么会这样？

这是我图中的一些代码：

funciones.chart = AmCharts.makeChart("chartdiv", {
    "type": "serial",
    "theme": "light",
    "precision":"3",
    "decimalSeparator": ",",
    "thousandsSeparator": ".",
    "legend": {
        "horizontalGap": 10,
        "maxColumns": 3,
        "position": "top",
        "useGraphSettings": false,
        "markerSize": 10,
        "marginTop": 20,
        "autoMargins":true,
        "forceWidth":true,
        "valueAlign":"right",
        "labelWidth":85,
        "valueWidth":85
    },
    "dataProvider": response,
    "synchronizeGrid":true,
    "valueAxes": [{
        "axisAlpha": 0,
        "position": "left",
        "title": "Activos"
    }],
    "graphs": graphs,
    "chartScrollbar": {},
    "chartCursor": {
        "cursorPosition": "mouse"
    },
    "categoryField": "diahora",
    "chartCursor": {
        "fullWidth": true,
        "cursorAlpha": 0.1,
        "listeners": [{
            "event": "zoomed",
            "method": function(ev) {
                var value = funciones.chart.valueAxes;
                var uno = funciones.chart.dataProvider[value[0].start];
                var dos = funciones.chart.dataProvider[value[0].end];

            }
        }]
    },
    "categoryAxis": {
        "gridPosition": "start",
        "axisColor": "#DADADA",
    },
    "export": {
        "enabled": true,
        "position": "top-right",
        "class": "export-main",
        "menu": [ {
            "title": "Exportar el gráfico a archivo de imagen",
            "label": "Descargar",
            "menu": [ "PNG", "JPG", "PDF" ]
        }]
    }
});

编辑：地狱！数据实际上制作得很糟糕……我不知道为什么，但是在只有一种情况下，JSON的值之间带有空白数组[]：

[{"fecha":"2018-09-01","hora":"00:00:00","dia":1,"diahora":"1-00:00:00","cen_name":"AIHUAPI_______013","descripcion":"Rerversa 52ET2","activo_actual":"393.54786432893"},[],{"fecha":"2018-09-01","hora":"00:15:00","dia":1,"diahora":"1-00:15:00","cen_name":"AIHUAPI_______013","descripcion":"Rerversa 52ET2","activo_actual":"405.51075393844"},[], etc...

但是其余的都可以，例如：

[{"fecha":"2018-01-01","hora":"00:00:00","dia":1,"diahora":"1-00:00:00","cen_name":"AIHUAPI_______013","descripcion":"Rerversa 52ET2","activo_actual":"179.64412533621"},{"fecha":"2018-01-01","hora":"00:15:00","dia":1,"diahora":"1-00:15:00","cen_name":"AIHUAPI_______013","descripcion":"Rerversa 52ET2","activo_actual":"169.2686290587"}, etc...