amCharts tooltip is showing only on DateAxis but not ValueAxis

I'm using amCharts and I'm making a XY Chart with multiple series, the tooltip shows ony when the X Axis type is DateAxis but not working when it's ValueAxis

var dateAxis = chart5.xAxes.push(new am4charts.DateAxis());
series.dataFields.dateX = "time";

amChart with tooltip:

Now when I change these 2 lines to Value Axis it doesn't work

var dateAxis = chart5.xAxes.push(new am4charts.ValueAxis());
    series.dataFields.valueX = "time";

amChart without tooltip: