Kendo Schedule DataSource not able to get data from Controller - kendo-ui

Question

We are using Kendo-Scheduler in an Asp.net application.
We are having a problem getting events to display in the calendar.
When we use Server Binding, we can see the events display in the calendar as expected. We do this in our ViewComponent:
public async Task<IViewComponentResult> InvokeAsync()
{
List<TaskViewModel> myTasks = GetItems();
return View(myTasks); //these events display on the calendar succssfully
}
However, we need to use Ajax Binding. When we do the following, no data is returned to the DataSource. When we look at scheduler_dataBound() for the data, we can see that no data is returned from the controller.
What am I doing wrong in the below? Why is the Server binding working but not the Ajax Binding?
//my.cshtml
#(Html.Kendo().Scheduler<Plantview.Core.ViewModels.TaskViewModel>()
.Name("scheduler")
.Date(new DateTime(2022, 10, 01))
.StartTime(new DateTime(2022, 10, 01, 7, 00, 00))
.Height(600)
.Views(views =>
{
views.MonthView(m => {
m.Selected(true);
m.EventHeight(150);
});
})
.Timezone("Etc/UTC")
.DataSource(d => d
.Model(m =>
{
m.Field(f => f.OwnerID).DefaultValue(1);
m.Field(f => f.Title).DefaultValue("No title");
m.Field(f => f.Description).DefaultValue("no desc");
m.RecurrenceId(f => f.RecurrenceID);
})
.Read("Read", "MyController")
)
.Events(e => {
e.DataBound("scheduler_dataBound");
})
)
<script type="text/javascript">
function scheduler_dataBound(e) {
var data = $("#scheduler").data("kendoScheduler").dataSource;
console.log(data); //Here -> _total=0 and _data has no objects
}
</script>
//My Controller method
public virtual JsonResult Read([DataSourceRequest] DataSourceRequest request)
{
//This is getting called from calendar datasource read
return Json(GetItems().ToDataSourceResult(request)); //Here I am mocking up data
}
//My Mock data
public List<TaskViewModel> GetItems()
{
List<TaskViewModel> list = new List<TaskViewModel>();
list.Add(new TaskViewModel
{
Title = "Event 1",
Start = new DateTime(2022, 10, 1),
End = new DateTime(2022, 10, 1),
Description = "Description 1",
IsAllDay = false,
OwnerID = 1,
TaskID = 1
});
......More data
return list;
}