I have a problem grouping the schedule. In the sample http://demos.telerik.com/kendo-ui/scheduler/resources-grouping-horizontal it shows how to achieve this, but if I replace the datasource with an array, it doesn't work anymore. As soon as I remove the grouping attribute the events show up in the scheduler.
You can find the repro in this dojo: http://dojo.telerik.com/UCUle/7. This has two scheduler controls, which are exact copies of each other, only the group is different.
What am I doing wrong?