You are the first to report this error for RadGrid. Can you please help us to reproduce the problem?
Which version of RadGrid do you use:
If the RenderMode is set to Auto, the control will automatically choose a render mode depending on the client device.
Are you able to reproduce the scrolling error in any of the live demos and how, please provide steps and instructions of how to do that.
Please, make sure that you are also testing with the latest version of Telerik.Web.UI.dll which is 2018.2.710.
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