One possible cause for this behavior may be the sampling. For more information on this feature, please refer to this article:
You can set the SamplingThreshold
to 0, to see if the data is available. If it is not, you can open a formal support ticket, and send us a small working project, for additional review and testing.
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items