When I set the chartType to "LineChart" or "BarChart" the custom HTML Tooltip is working without a problem but I only have 1 Y Axis. When I change the chartType to "Line" or "Bar" the second Y-Axis appear but the html tool tip no longer works.

Do I have to set more specific options for the chart?

 <Chart
   chartType="LineChart"
   data={data}
   formatters={[{ type: 'NumberFormat', column: 1 }]}
   width={'100%'}
   height={'500px'}
   options={{
     tooltip: { isHtml: true },
     colors: ['#0C79B1', '#FF7D2D'],
     legend: 'none',
     titleTextStyle: {
        fontSize: 20,
        bold: false,
     },
     isStacked: true,
     series: {
        0: { axis: 'Temperatur' },
     },
     }}
/>